Powered by Deep Web Technologies
Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep  

Open Energy Info (EERE)

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Details Activities (2) Areas (1) Regions (0) Abstract: Analyses of twenty-six gneissic whole rocks from the depth range 732-2588 m in drill hole GT-2 yield a 1.62 ± 0.04 b.y. isochron age with initial 86Sr/86Sr (Ro) = 0.7067 ± 0.0014; this age is in agreement with radiometric ages reported for rocks elsewhere in north-central New Mexico. A preliminary isochron age of 1.92 ± 0.18 b.y. with Ro = 7014 ± 0.0025 from the nearby drill hole GT-1 is defined by eight samples. Because these

2

Rb-Sr Geochronologic Investigation Of Precambrian Samples From...  

Open Energy Info (EERE)

Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rb-Sr...

3

Rb--Sr, K--Ar, and fission-track geochronological studies of samples from LASL drill holes GT-1, GT-2, and EE-1  

DOE Green Energy (OSTI)

Geochronological investigations using the Rb-Sr, K-Ar, and fission-track methods have been completed on core samples from the three LASL deep drill holes, GT-1, GT-2, and EE-1. This work indicates a complex history for these Precambrian rocks beginning with a metamorphic event at 1.66 b.y. which generated the gneisses and schists from older sedimentary and igneous rocks. The metamorphic complex was intruded by at least two different magmas at 1.3--1.4 b.y. producing thin felsic dikes and a major biotite granodiorite pluton. This igneous activity caused pervasive argon loss to occur, lowering the K-Ar ages to about 1.4 b.y. Plio-Pleistocene igneous activity related to formation of the Valles Caldera increased the local geothermal gradient to 50--60/sup 0/C/km and produced fission track annealing in apatite and again argon loss from the biotite in deeper samples.

Brookins, D.G.; Forbes, R.B.; Turner, D.L.; Laughlin, A.W.; Naeser, C.W.

1977-06-01T23:59:59.000Z

4

Structure and optical properties of a noncentrosymmetric borate RbSr{sub 4}(BO{sub 3}){sub 3}  

SciTech Connect

A new noncentrosymmetric borate, RbSr{sub 4}(BO{sub 3}){sub 3} (abbreviated as RSBO), has been grown from Rb{sub 2}O--B{sub 2}O{sub 3}--RbF flux and its crystal structure was determined by single crystal x-ray diffraction. It crystallizes in space group Ama2 with cell parameters of a=11.128(10) A, b=12.155(15) A, c=6.952(7) A, Z=4. The basic structural units are isolated planar BO{sub 3} groups. Second harmonic generation (SHG) test of the title compound by the Kurtz-Perry method shows that RSBO can be phase matchable with an effective SHG coefficient about two-thirds as large as that of KH{sub 2}PO{sub 4} (KDP). Finally, based on the anionic group approximation, the optical properties of the title compound are compared with those of the structure-related apatite-like compounds with the formula 'A{sub 5}(TO{sub n}){sub 3}X'. - Graphical abstract: RbSr{sub 4}(BO{sub 3}){sub 3} and some other borate NLO compounds, namely Ca{sub 5}(BO{sub 3}){sub 3}F RCa{sub 4}(BO{sub 3}){sub 3}O (R=Y or Gd) and Na{sub 3}La{sub 2}(BO{sub 3}){sub 3} can be viewed as the derivatives of apatite. They have similar formula composed of five cations and three anion groups (we call them 5/3 structures). The detailed SHG coefficients and optical properties of the apatite-like NLO crystals were compared and summarized. Highlights: Black-Right-Pointing-Pointer A new noncentrosymmetric borate RbSr{sub 4}(BO{sub 3}){sub 3} was grown from flux. Black-Right-Pointing-Pointer The RbSr{sub 4}(BO{sub 3}){sub 3} can be viewed as a derivative of the apatite-like structure. Black-Right-Pointing-Pointer The structure and its relationship to the optical properties of RbSr{sub 4}(BO{sub 3}){sub 3} are compared with other NLO crystals with apatite-like structures. Black-Right-Pointing-Pointer The basic structural units are the planar BO{sub 3} groups in the structure. Black-Right-Pointing-Pointer Second harmonic generation (SHG) test shows that RbSr{sub 4}(BO{sub 3}){sub 3} can be phase matchable with an effective SHG coefficient about two-thirds as large as that of KH{sub 2}PO{sub 4}.

Xia, M.J. [Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Li, R.K., E-mail: rkli@mail.ipc.ac.cn [Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)

2013-01-15T23:59:59.000Z

5

Single Variable and Multivariate Analysis of Remote Laser-Induced Breakdown Spectra for Prediction of Rb, Sr, Cr, Ba, and V in Igneous Rocks  

SciTech Connect

Laser-induced breakdown spectroscopy (LIBS) will be employed by the ChemCam instrument on the Mars Science Laboratory rover Curiosity to obtain UV, VIS, and VNIR atomic emission spectra of surface rocks and soils. LIBS quantitative analysis is complicated by chemical matrix effects related to abundances of neutral and ionized species in the resultant plasma, collisional interactions within plasma, laser-to-sample coupling efficiency, and self-absorption. Atmospheric composition and pressure also influence the intensity of LIBS plasma. These chemical matrix effects influence the ratio of intensity or area of a given emission line to the abundance of the element producing that line. To compensate for these complications, multivariate techniques, specifically partial least-squares regression (PLS), have been utilized to predict major element compositions (>1 wt.% oxide) of rocks, PLS methods regress one or multiple response variables (elemental concentrations) against multiple explanatory variables (intensity at each pixel of the spectrometers). Because PLS utilizes all available explanatory variable and eliminates multicollinearity, it generally performs better than univariate methods for prediction of major elements. However, peaks arising from emissions from trace elements may be masked by peaks of higher intensities from major elements. Thus in PLS regression, wherein a correlation coefficient is determined for each elemental concentration at each spectrometer pixel, trace elements may show high correlation with more intense lines resulting from optical emissions of other elements. This could result in error in predictions of trace element concentrations. Here, results of simple linear regression (SLR) and multivariate PLS-2 regression for determination of trace Rb, Sr, Cr, Ba, and V in igneous rock samples are compared. This study focuses on comparisons using only line intensities rather than peak areas to highlight differences between SLR and PLS.

Clegg, Samuel M [Los Alamos National Laboratory; Wiens, Roger C. [Los Alamos National Laboratory; Speicher, Elly A [MT HOLYOKE COLLEGE; Dyar, Melinda D [MT HOLYOKE COLLEGE; Carmosino, Marco L [MT HOLYOKE COLLEGE

2010-12-23T23:59:59.000Z

6

Geochronologic studies in the Grants mineral belt  

SciTech Connect

Geologic observation coupled with radiometric age dating can be used to assess ages of ore formation and, in some cases, ages of sedimentation in the Grants mineral belt. Rb-Sr studies indicate the earliest mineralization is trend ore at Ambrosia Lake and Smith Lake, dated at 139 +- 9.5 m.y. This date is similar to that for barren-rock montmorillonite from the Jackpile sandstone (Late Jurassic): 142 +- 14 m.y.; it may be used, with caution, to indicate the minimum age of sedimentation for the Morrison Formation. Geologic evidence indicates epigenetic rather than syngenetic ore formation. Barren-rock montmorillonites from Ambrosia Lake yield a poorly defined isochron of 132 +- 26 m.y. Early formed ore at the Jackpile-Paguate mine, Laguna district, was remobilized and reprecipitated at 113 +- 7 m.y. This date is older than the range of dates for the Dakota Formation (Cretaceous) and Mancos Shale. The 113 +- 7 m.y. mid-Cretaceous date for the Jackpile-Paguate ore is consistent with geologic evidence; geologic control suggests that other ore deposits are post-Late Jurassic but pre-Dakota Formation. Based on geologic evidence, mineralization in the Dakota Formation is thought to be very young. Laramide mineralization (60 to 70 m.y.) is evidenced by the presence of some stack ore. At least one uranium deposit, located partly in oxidized ground at the main redox front of the Grants mineral belt, may represent Tertiary mineralization; the clay-mineral Rb-Sr systematics of this deposit have been severely perturbed. Younger mineralization is indicated by U-Pb dates on uranophane (9 to 10 m.y.), and Pleistocene mineralization is noted for some ore. U-Pb dates of U/sup 4 +/ -rich ore minerals cluster between 80 and 100 m.y., although some are as old as 140 to 150 m.y. K-Ar dates on clay minerals range from 49 to 138 m.y. The reasons for this scatter are not known, although loss of radiogenic /sup 40/Ar due to burial is probable.

Brookins, D.G.

1980-01-01T23:59:59.000Z

7

Late Cenozoic volcanism, geochronology, and structure of the Coso Range,  

Open Energy Info (EERE)

Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range lies at the west edge of the Great Basin, adjacent to the southern part of the Sierra Nevada. A basement complex of pre-Cenozoic plutonic and metamorphic rocks is partly buried by approx.35 km^3 of late Cenozoic volcanic rocks that were erupted during two periods, as defined by K-Ar dating: (1) 4.0--2.5 m.y., approx.31 km^3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending order of abundance, and (2) < or =1.1 m.y., nearly equal amounts of basalt and

8

Integrating high-precision U-Pb geochronologic data with dynamic models of earth processes  

E-Print Network (OSTI)

Radioisotopic dating can provide critical constraints for understanding the rates of tectonic, dynamic and biologic processes operating on our planet. Improving the interpretation and implementation of geochronologic data ...

Blackburn, Terrence (Terrence Joseph)

2012-01-01T23:59:59.000Z

9

Engineering cyber infrastructure for U-Pb geochronology: Tripoli and U-Pb_Redux  

E-Print Network (OSTI)

In the past decade, major advancements in precision and accuracy of U-Pb geochronology, which stem from improved sample pretreatment and refined measurement techniques, have revealed previously unresolvable discrepancies ...

Bowring, J. F.

10

40Ar-39Ar Geochronology Of Magmatic Activity, Magma Flux And Hazards At  

Open Energy Info (EERE)

Ar-39Ar Geochronology Of Magmatic Activity, Magma Flux And Hazards At Ar-39Ar Geochronology Of Magmatic Activity, Magma Flux And Hazards At Ruapehu Volcano, Taupo Volcanic Zone, New Zealand Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 40Ar-39Ar Geochronology Of Magmatic Activity, Magma Flux And Hazards At Ruapehu Volcano, Taupo Volcanic Zone, New Zealand Details Activities (0) Areas (0) Regions (0) Abstract: We have determined precise eruption ages for andesites from Ruapehu volcano in the Tongariro Volcanic Centre of the Taupo Volcanic Zone (TVZ) using 40Ar/39Ar furnace step-heating of separated groundmass concentrates. The plateau ages indicate several eruptive pulses near 200, 134, 45, 22 and <15 ka and, based on our and previous field mapping confirm the lavas of the Te Herenga Formation as the oldest exposed part of the

11

Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area  

Open Energy Info (EERE)

Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area (Brookins & Laughlin, 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area (Brookins & Laughlin, 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Fenton Hill HDR Site References D. G. Brookins, A. W. Laughlin (1983) Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Retrieved from "http://en.openei.org/w/index.php?title=Compound_and_Elemental_Analysis_At_Fenton_Hill_Hdr_Geothermal_Area_(Brookins_%26_Laughlin,_1983)&oldid=511281"

12

Uranium-series and radiocarbon geochronology of deep-sea corals: implications for Southern Ocean ventilation rates and  

E-Print Network (OSTI)

Uranium-series and radiocarbon geochronology of deep-sea corals: implications for Southern Ocean Received 25 September 2000; accepted 5 September 2001 Abstract We present new uranium apply an improved two-component mixing approach to correct uranium-series dates for contaminant thorium

Lea, David

13

Statistical considerations in high precision U-Pb geochronology, with an application to the tectonic evolution of the North Cascades, Washington  

E-Print Network (OSTI)

The range of geologic problems that may be addressed by U-Pb geochronology is governed by the precision to which U-Pb dates can be measured, expressed as their estimated uncertainties. Accurate and precise knowledge of ...

McLean, Noah Morgan

2012-01-01T23:59:59.000Z

14

Petrological and geochronological constraints on the metamorphic evolution of high-pressure granulites and eclogites of the Snowbird tectonic zone, Canada  

E-Print Network (OSTI)

This thesis examines the petrology and geochronology of high-pressure granulites and eclogites within the Snowbird tectonic zone of the western Canadian Shield. The focus of this study is the East Athabasca mylonite triangle ...

Baldwin, Julia A. (Julia Ann), 1974-

2003-01-01T23:59:59.000Z

15

The Lathrop Wells volcanic center: Status of field and geochronology studies  

SciTech Connect

The purpose of this paper is to describe the status of field and geochronology studies of the Lathrop Wells volcanic center. Our perspective is that it is critical to assess all possible methods for obtaining cross-checking data to resolve chronology and field problems. It is equally important to consider application of the range of chronology methods available in Quaternary geologic research. Such an approach seeks to increase the confidence in data interpretations through obtaining convergence among separate isotopic, radiogenic, and age-correlated methods. Finally, the assumptions, strengths, and weaknesses of each dating method need to be carefully described to facilitate an impartial evaluation of results. The paper is divided into two parts. The first part describes the status of continuing field studies for the volcanic center for this area south of Yucca Mountain, Nevada. The second part presents an overview of the preliminary results of ongoing chronology studies and their constraints on the age and stratigraphy of the Lathrop Wells volcanic center. Along with the chronology data, the assumptions, strengths, and limitations of each methods are discussed.

Crowe, B.; Morley, R. [Los Alamos National Laboratory, Las Vegas, NV (United States); Wells, S. [California Univ., Riverside, CA (United States); Geissman, J.; McDonald, E.; McFadden, L.; Perry, F. [New Mexico Univ., Albuquerque, NM (United States); Murrell, M.; Poths, J. [Los Alamos National Lab., NM (United States); Forman, S. [Ohio State Univ., Columbus, OH (United States)

1992-03-01T23:59:59.000Z

16

Integrated Geochronologic, Geochemical, and Sedimentological Investigation of Proterozoic-Early Paleozoic Strata: From Northern India to Global Perspectives  

E-Print Network (OSTI)

isotope systematics of the Vindhyan Supergroup, India. Geology isotope trends from Aravalli strata. Regional geology and

McKenzie, Neil Ryan

2012-01-01T23:59:59.000Z

17

Integrated Geochronologic, Geochemical, and Sedimentological Investigation of Proterozoic-Early Paleozoic Strata: From Northern India to Global Perspectives  

E-Print Network (OSTI)

composition of sourcerock. Large populations of assess sediment source relationships among rocks of rocks, eastern Greenland: Implications for recognizing the sources

McKenzie, Neil Ryan

2012-01-01T23:59:59.000Z

18

Crustal melting in the Himalayan orogen : field, geochemical and geochronological studies in the Everest region, Nepal  

E-Print Network (OSTI)

A combination of field studies and geochemical techniques were used to investigate the timing and processes involved in leucogranite generation in the Everest region of the Himalayan orogen. Geochemical investigations ...

Viskupic, Karen M. (Karen Marie), 1975-

2003-01-01T23:59:59.000Z

19

Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada  

Science Conference Proceedings (OSTI)

This report summarizes the results of paleoseismic investigations at two trenches (SCR-T1 and SCR-T3) excavated across the Stagecoach Road (SCR) fault at the southeastern margin of Yucca Mountain. The results of these studies are based on detailed mapping or logging of geologic and structural relationships exposed in trench walls, combined with descriptions of lithologic units, associated soils, and fault-related deformation. The ages of trench deposits are determined directly from geochronologic dating of selected units and soils, supplemented by stratigraphic and soil correlations with other surficial deposits in the Yucca Mountain area. The time boundaries used in this report for subdivision of the Quaternary period are listed in a table. These data and interpretations are used to identify the number, amounts, timing, and approximately lengths of late to middle Quaternary (less than 200 ka) surface-faulting events associated with paleoearthquakes at the trench sites. This displacement history forms the basis for calculating paleoearthquake recurrence intervals and fault-slip rates for the Stagecoach Road fault and allows comparison with fault behavior on other Quaternary faults at or near Yucca Mountain.

Menges, C.M.; Oswald, J.A.; Coe, J.A.; Lundstrom, S.C.; Paces, J.B.; Mahan, S.A.; Widmann, B.; Murray, M.

1998-04-01T23:59:59.000Z

20

Accident Investigation Handbook  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Improvement (HPI). The recommended techniques apply equally well to DOE Federal-led accident investigations conducted under DOE Order (O) 225.1B, Accident Investigations,...

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Investigations | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigations Investigations Investigations Investigations The Office of Investigations performs investigations into allegations of fraud, waste, and abuse in programs and operations of the Department, NNSA and FERC. Priority is given to investigations of suspected violations of criminal and civil statutes, as well as serious administrative misconduct. Particular focus is placed on the prevention and detection of contract and grant fraud; environmental, health and safety violations; computer crimes; and issues that reflect on the integrity and credibility of Department officials. Suspected criminal and civil violations are reported promptly to the Department of Justice for prosecutive consideration. Potential outcomes from such referrals include declination or acceptance for further action,

22

FAQs - NIST WTC Investigation  

Science Conference Proceedings (OSTI)

... The agency received $16 million for the investigation in September 2002 from the federal government's fiscal year 2002 supplemental appropriation ...

2011-09-20T23:59:59.000Z

23

Textile - Compressor Trip Investigation  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the investigation of an 800 HP, 4160 volt compressor that has been tripping off at a textile manufacturing facility.

2003-12-31T23:59:59.000Z

24

Investigator Title Technology  

E-Print Network (OSTI)

Principal Investigator Title Technology Sector State Funds Expended Cost Share Expended Jobs,000 1 Schanbacher, Floyd Development and Commercialization of an integrated Biomass to Electricity Funds Expended Cost Share Expended Jobs Created Average Salary Leverage: Federal $ Leverage: State

25

Incident Investigation and Reporting  

Science Conference Proceedings (OSTI)

This report presents a model procedure for incident investigations based on an examination of programs at fourteen utilities believed to have good and effective procedures. The model was compiled by an expert who also drew on materials from other industries. An outline presents the basic procedure while the main text discusses in more detail alternate methods that may be preferable for a specific utility.

2003-05-19T23:59:59.000Z

26

Accident Investigation Handbook  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SENSI NOT MEAS UREMENT TIVE D DOE-HDBK-1 1208-2012 July 2012 DOE E HA ANDBOOK K Ac ccide ent and d Op pera ational Sa afety y An naly ysis Volume e I: Ac ccide ent A Analy ysis Tec chniq ques U.S. Depar rtmen nt of En nergy Was shingto on, D.C C. 205 85 DOE-HDBK-1208-2012 INTRODUCTION - HANDBOOK APPLICATION AND SCOPE Accident Investigations (AI) and Operational Safety Reviews (OSR) are valuable for evaluating technical issues, safety management systems and human performance and environmental conditions to prevent accidents, through a process of continuous organizational learning. This Handbook brings together the strengths of the experiences gained in conducting Department of Energy (DOE) accident investigations over the past many years. That experience encourages us

27

Co-Investigators:  

E-Print Network (OSTI)

Our Interdisciplinary Science investigation addresses the primary biogeochemical cycles of planet Earth and considers, in particular, how they are being changed by humans. The efforts focus on the cycles of water, carbon, nitrogen, and selected trace gases. Process-based models are developed as modules, in concert with database management techniques which synthesize the in-situ and remote sensing data needed to characterize regional and global scales. Models of the Earth's biogeochemical cycles are a central theme. They provide a rigorous means for developing quantitative projections of the interactions of atmospheric composition, climate, terrestrial and aquatic ecosystems, ocean circulation and sea level, and the effects of human activities. The family of models being developed in this investigation provide the predictive link between the physical and biological Earth system and the human dimensions of global change. The long-term goal of our IDS research is to understand the primary biogeochemical cycles of the planet, the nature of the coupling between the Biogeochemical Subsystem and the Physical-Climate Subsystem, and the characteristics of the human forcing of the Biogeochemical Subsystem and hydrological cycle. Our strategy is to study how element cycles function in natural systems where perturbations in biogeochemical states are driven primarily by climate variability

John D. Aber; William R. Emanuel; Leonard A. Fisk; Barrett N. Rock; David L. Skole

1998-01-01T23:59:59.000Z

28

T Plant Cell Investigation  

Science Conference Proceedings (OSTI)

The Waste Management Project within Fluor Hanford performed an initial investigation of the current and historical contents of 221-T (T Plant Canyon) process cells. This Phase I report is intended to be followed by a final, more detailed, Phase II report. This information has been gathered in order to help reduce uncertainties and future surprises regarding cell contents during future work in and around T Plant process cells. The information was obtained from available documentation and was compiled into a database that is included in the report. Resolution of any apparently conflicting information was not a part of the Phase I effort. No information has been found to date that would indicate there could be a significant unexpected hazard in any of the process cells.

HLADEK, K.L.

2001-09-20T23:59:59.000Z

29

Ultrasonic mitigation investigation  

DOE Green Energy (OSTI)

The suggestion was made that the introduction of ultrasound into Tank 101-SY might serve to release the hydrogen bubbles trapped in the slurry. This would cause a continuous release of bubbles and thereby prevent the turnover phenomenon. Two major considerations were (1) the method for delivering the energy into the slurry and (2) the effective volume of action. In this study, we attached the former by designing and testing a liquid-filled waveguide and radiator, and the latter by making ultrasonic property measurements on synthetic waste. Our conclusion is that ultrasonic mitigation may not be feasible, primarily because of the very high attenuation (1000 to 50000 dB/m) factor to 10 to 30 kHz. Such a high attenuation would restrict the action volume to such a low value as to make the method impractical. Further investigations are recommended to identify the cause of this effect and determine if this same effect will be seen in real 101-SY waste.

Hildebrand, B.P.; Shepard, C.L.

1993-04-01T23:59:59.000Z

30

Aquifer stability investigations  

DOE Green Energy (OSTI)

The study of compressed air energy storage (CAES) in porous rock reservoirs is carried out within the Reservoir Stability Studies Program at Pacific Northwest Laboratory. The goal of the study is to establish criteria for long-term stability of aquifer CAES reservoirs. These criteria are intended to be guidelines and check lists that utilities and architect-engineering firms may use to evaluate reservoir stability at candidate CAES sites. These criteria will be quantitative where possible, qualitative where necessary, and will provide a focal point for CAES relevant geotechnical knowledge, whether developed within this study or available from petroleum, mining or other geotechnical practices using rock materials. The Reservoir Stability Studies Program had four major activities: a state-of-the-art survey to establish preliminary stability criteria and identify areas requiring research and development; numerical modeling; laboratory testing to provide data for use in numerical models and to investigate fundamental rock mechanics, thermal, fluid, and geochemical response of aquifer materials; and field studies to verify the feasibility of air injection and recovery under CAES conditions in an aquifer, to validate and refine the stability criteria, and to evaluate the accuracy and adequacy of the numerical and experimental methodologies developed in previous work. Three phases of study, including preliminary criteria formulation, numerical model development, and experimental assessment of CAES reservoir materials have been completed. Present activity consists of construction and operation of the aquifer field test, and associated numerical and experimental work in support of that activity. Work is presently planned to be complete by 1983 at the end of the field test. At that time the final stability criteria for aquifers will be issued. Attached here also are preliminary criteria for aquifers.

Allen, R.D.; Doherty, T.J.

1981-09-01T23:59:59.000Z

31

Investigations on the sediment chronology and trace metal accumulation in Sabine-Neches estuary, Beaumont, Texas  

E-Print Network (OSTI)

The accumulation rates of sediments and trace metals (Co, Cr, Cu, Ni, Pb, Zn) were measured along with the concentrations of Al, Fe, Mn and organic carbon in four sediment cores from Sabine-Neches estuary, near Beaumont, Texas. A reliable geochronology of sediments and reconstruction of the history of trace metal inputs into this shallow estuarine environment was possible because the 239,240pu profiles closely tracked the bomb fallout history into the environment. The sedimentation rate was estimated to be about 4-5 mm/yr. Due to the very low and variable activities of excess 21OPb in the sediments, the 21OPb dating method did not prove to be very useful in the study area. One difficulty had to do with the large variability of grain size parameters in the sediments. The amount of fines varied from 90% within a single core. The activities of excess 21OPb and the concentrations of Al, Fe, organic carbon, and trace metals varied as a function of the amount of fine particles. 21OPb at the bottom of the sediment cores was in secular equilibrium with 226Ra, 23OTh, and 234U in some cores, while in others, this was not the case. The reasons for disagreement between 21OPb and 226Ra concentrations at depth were investigated. The mixing rates of surface sediments were low and was about 0.16-0.40 cm2yr-1. Down core variations of aluminum normalized enrichment factors for trace metals demonstrated that, since 1860, the sediments of this estuary have remained relatively "pristine" with respect to trace metal concentrations. While the concentrations of Pb and Zn in some sections of the sediment column were slightly enriched, Co, Cr, Cu, and Ni were depleted in all sediment cores analyzed. No significant enrichment of light rare earth elements was observed. Enrichment might have been expected from inputs of cracking catalysts used in refineries. Therefore REEs could not be used as non-steady tracers. The lack of strong enrichment of trace metals, light rare earth elements, and low inventories of radioisotopes could be a result of the short residence time of the estuarine water, long removal residence times of trace metals and radioactive elements in the water column, low salinity conditions, and possibly, complexation of these metals with dissolved organic matter.

Ravichandran, Mahalingam

1994-01-01T23:59:59.000Z

32

Criminal Investigator | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Criminal Investigator Criminal Investigator Criminal Investigator Special Agent Responsibilities The Office of Investigations conducts investigations of DOE personnel, contractors, and others receiving DOE funds concerning alleged violations of law that impact DOE programs, operations, facilities, and personnel. Examples of issues investigated by the OIG include soliciting and/or accepting a bribe, overcharging the Government on contracts and grants, providing false data and information, supplying defective or inferior products, committing environmental violations, theft and/or destruction of government property, misuse of Government computers, serious employee misconduct, and ethical and conflict of interest violations. As a Special Agent, you will have authority to conduct criminal, civil, and

33

NIST's World Trade Center Investigation  

Science Conference Proceedings (OSTI)

... The agency received $16 million for the investigation in September 2002 from the fiscal year 2002 supplemental appropriation. ...

2013-01-22T23:59:59.000Z

34

Investigations Memorandum | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

25, 2006 Investigation of Allegations Involving False Statements and False Claims at the Yucca Mountain Project In March 2005, senior Department o Energy officials were alerted to...

35

NEHRP - Post-Earthquake Investigations  

Science Conference Proceedings (OSTI)

... ASCE) policies and procedures for conducting post-disaster ... experts to collect data from the event. ... of earthquake-related investigations prepared by ...

36

Machine Shop Investigates PQ Issues  

Science Conference Proceedings (OSTI)

EPRI performed a power quality (PQ) audit to harden a machine shop against PQ-related issues. EPRI engineers investigated the various origins of existing PQ disturbances as well as the susceptibility of the plant equipment to these disturbances. This case study reports the findings of this detailed investigation.

2007-12-31T23:59:59.000Z

37

Cooperative autonomy for contact investigation  

E-Print Network (OSTI)

Autonomous surface and underwater vehicles present a safe and low-cost solution for various contact investigation tasks, such as harbor surveillance for potentially threatening small craft or submarines. Since such a task ...

Schmidt, Henrik

38

Agriculture - Noise and shocking investigation  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents an investigation of noise and shocking from the telephone line at a horse farm. The investigation revealed that the noise was caused by an arching connection and vegetation along the fence. Also the charger's grounding system was not installed properly. Recommendations were made to the customer to reinstall the charger's ground system to manufacturer's specification and use an AM radio to find the loose connection along the fence.

2003-12-31T23:59:59.000Z

39

Hurricane Katrina Wind Investigation Report  

SciTech Connect

This investigation of roof damage caused by Hurricane Katrina is a joint effort of the Roofing Industry Committee on Weather Issues, Inc. (RICOWI) and the Oak Ridge National Laboratory/U.S. Department of Energy (ORNL/DOE). The Wind Investigation Program (WIP) was initiated in 1996. Hurricane damage that met the criteria of a major windstorm event did not materialize until Hurricanes Charley and Ivan occurred in August 2004. Hurricane Katrina presented a third opportunity for a wind damage investigation in August 29, 2005. The major objectives of the WIP are as follows: (1) to investigate the field performance of roofing assemblies after major wind events; (2) to factually describe roofing assembly performance and modes of failure; and (3) to formally report results of the investigations and damage modes for substantial wind speeds The goal of the WIP is to perform unbiased, detailed investigations by credible personnel from the roofing industry, the insurance industry, and academia. Data from these investigations will, it is hoped, lead to overall improvement in roofing products, systems, roofing application, and durability and a reduction in losses, which may lead to lower overall costs to the public. This report documents the results of an extensive and well-planned investigative effort. The following program changes were implemented as a result of the lessons learned during the Hurricane Charley and Ivan investigations: (1) A logistics team was deployed to damage areas immediately following landfall; (2) Aerial surveillance--imperative to target wind damage areas--was conducted; (3) Investigation teams were in place within 8 days; (4) Teams collected more detailed data; and (5) Teams took improved photographs and completed more detailed photo logs. Participating associations reviewed the results and lessons learned from the previous investigations and many have taken the following actions: (1) Moved forward with recommendations for new installation procedures; (2) Updated and improved application guidelines and manuals from associations and manufacturers; (3) Launched certified product installer programs; and (4) Submitted building code changes to improve product installation. Estimated wind speeds at the damage locations came from simulated hurricane models prepared by Applied Research Associates of Raleigh, North Carolina. A dynamic hurricane wind field model was calibrated to actual wind speeds measured at 12 inland and offshore stations. The maximum estimated peak gust wind speeds in Katrina were in the 120-130 mph range. Hurricane Katrina made landfall near Grand Isle, Louisiana, and traveled almost due north across the city of New Orleans. Hurricane winds hammered the coastline from Houma, Louisiana, to Pensacola, Florida. The severe flooding problems in New Orleans made it almost impossible for the investigating teams to function inside the city. Thus the WIP investigations were all conducted in areas east of the city. The six teams covered the coastal areas from Bay Saint Louis, Mississippi, on the west to Pascagoula, Mississippi, on the east. Six teams involving a total of 25 persons documented damage to both low slope and steep slope roofing systems. The teams collected specific information on each building examined, including type of structure (use or occupancy), wall construction, roof type, roof slope, building dimensions, roof deck, insulation, construction, and method of roof attachment. In addition, the teams noted terrain exposure and the estimated wind speeds at the building site from the Katrina wind speed map. With each team member assigned a specific duty, they described the damage in detail and illustrated important features with numerous color photos. Where possible, the points of damage initiation were identified and damage propagation described. Because the wind speeds in Katrina at landfall, where the investigations took place, were less than code-specified design speeds, one would expect roof damage to be minimal. One team speculated that damage to all roofs in the area they examined was les

Desjarlais, A. O.

2007-08-15T23:59:59.000Z

40

Investigating Ultrasonic Diffraction Grating Spectroscopy and ...  

Investigating Ultrasonic Diffraction Grating Spectroscopy and Reflection Techniques for Characterization Slurry Properties Investigating Ultrasonic Diffraction Grating

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

NPP Principal Investigators and Reviewers  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigators and Reviewers Principal Investigators and Reviewers Where possible, the original principal investigator or his/her successor has been contacted to review the net primary productivity (NPP) data and documentation. All those who have assisted with the development of the ORNL DAAC NPP database by contributing or reviewing its contents are gratefully acknowledged. The following list is not comprehensive; there are many others who have provided additional data or useful feedback on the format and structure of the database, but we can at least acknowledge the following persons: Grassland Sites: Bill Lauenroth, Colorado State University, USA billl@cnr.colostate.edu Bill Parton, Colorado State University, USA billp@nrel.colostate.edu Pablo Roset, University of Buenos Aires, Argentina blopas@ifeva.edu.ar

42

100 Areas CERCLA ecological investigations  

SciTech Connect

This document reports the results of the field terrestrial ecological investigations conducted by Westinghouse Hanford Company during fiscal years 1991 and 1992 at operable units 100-FR-3, 100-HR-3, 100-NR-2, 100-KR-4, and 100-BC-5. The tasks reported here are part of the Remedial Investigations conducted in support of the Comprehensive Environmental Response, compensation, and Liability Act of 1980 studies for the 100 Areas. These ecological investigations provide (1) a description of the flora and fauna associated with the 100 Areas operable units, emphasizing potential pathways for contaminants and species that have been given special status under existing state and/or federal laws, and (2) an evaluation of existing concentrations of heavy metals and radionuclides in biota associated with the 100 Areas operable units.

Landeen, D.S.; Sackschewsky, M.R.; Weiss, S.

1993-09-01T23:59:59.000Z

43

Principal Investigator First Name College  

E-Print Network (OSTI)

The project costs requested in this application are necessary to perform the grant activities and have beenMail Stop Principal Investigator First Name College Employment Type Project Approval Form Office Person #1 Project Information Project Title Project Budget Email Fax Telephone Zip Code Street Address

Snider, Barry B.

44

AMIE (ARM MJO Investigation Experiment):  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 AMIE (ARM MJO Investigation Experiment): Observations of the Madden-Julian Oscillation for Modeling Studies Science Plan ARM Climate Research Facility Tropical Western Pacific Manus Site October 2011-March 2012 C Long Principal Investigator A DelGenio P May W Gustafson S McFarlane R Houze P Minnis C Jakob C Schumacher M Jensen A Vogelmann S Klein Y Wang L Ruby Leung X Wu X Liu S Xie E Luke March 2010 DISCLAIMER This report was prepared as an account of work sponsored by the U.S Government Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed,

45

ARM - Principal Investigator Data Products  

NLE Websites -- All DOE Office Websites (Extended Search)

govDataPI Data Products govDataPI Data Products Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Data Products These data sets have been made available by ARM principal investigators (PI) or by others for use by the scientific community through the ARM Data Archive. These data are value-added products to particular ARM data sets or are derived research data of value to ARM science. To submit your own value-added data set, go to Data Product Registration and Submission. Using your Archive account, these data are freely available. First time users of the Archive will need to create a new account by completing a relatively short form asking for contact information-accounts are activated right away. Product Name Investigator Sites Start End

46

ARM MJO Investigation Experiment on  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 ARM MJO Investigation Experiment on Gan Island (AMIE-Gan) Science Plan October 2011-March 2012 C Long Principal Investigator A Del Genio P May M Deng S McFarlane X Fu P Minnis W Gustafson C Schumacher R Houze A Vogelmann C Jakob Y Wang M Jensen P Webster R Johnson S Xie X Liu C Zhang E Luke April 2011 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

47

AMIE (ACRF MJO Investigation Experiment)  

NLE Websites -- All DOE Office Websites (Extended Search)

AMIE AMIE (ACRF MJO Investigation Experiment) Planning Meeting AMIE Science Steering Committee Chuck Long, Tony DelGenio, Bill Gustafson, Bob Houze, Mike Jensen, Steve Klein, Ruby Leung, Xaihong Liu, Ed Luke, Peter May, Sally McFarlane, Pat Minnis, Courtney Schumacher, Andy Vogelmann, Yi Wang, Xiaoqing Wu, Shaohong Xie Agenda * Proposal due May 1 !!!!!! * Primary purpose of this meeting is discussions and planning in support of

48

LLNL-CONF-482708 Investigation  

NLE Websites -- All DOE Office Websites (Extended Search)

2708 2708 Investigation of Stimulation-Response Relationships for Complex Fracture Systems in Enhanced Geothermal Reservoirs P. Fu, S. M. Johnson, C. R. Carrigan May 5, 2011 35th Annual Meeting of the Geothermal Resources Council San Diego, CA, United States October 23, 2011 through October 26, 2011 Disclaimer This document was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor Lawrence Livermore National Security, LLC, nor any of their employees makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein

49

Late Cenozoic volcanism, geochronology, and structure of the...  

Open Energy Info (EERE)

by various geophysical anomalies that are evidently related to an active hot-water geothermal system. This system apparently is heated by a reservoir of silicic magma...

50

Field investigation of keyblock stability  

SciTech Connect

Discontinuities in a rock mass can intersect an excavation surface to form discrete blocks (keyblocks) which can be unstable. This engineering problem is divided into two parts: block identification, and evaluation of block stability. One stable keyblock and thirteen fallen keyblocks were observed in field investigations at the Nevada Test Site. Nine blocks were measured in detail sufficient to allow back-analysis of their stability. Measurements included block geometry, and discontinuity roughness and compressive strength. Back-analysis correctly predicted stability or failure in all but two cases. These two exceptions involved situations that violated the stress assumptions of the stability calculations. Keyblock faces correlated well with known joint set orientations. The effect of tunnel orientation on keyblock frequency was apparent. Back-analysis of physical models successfully predicted block pullout force for two-dimensional models of unit thickness. Two-dimensional (2D) and three-dimensional (3D) analytic models for the stability of simple pyramidal keyblocks were examined. Calculated stability is greater for 3D analyses than for 2D analyses. Calculated keyblock stability increases with larger in situ stress magnitudes, larger lateral stress ratios, and larger shear strengths. Discontinuity stiffness controls block displacement more strongly than it does stability itself. Large keyblocks are less stable than small ones, and stability increases as blocks become more slender. Rock mass temperature decreases reduce the confining stress magnitudes and can lead to failure. The pattern of stresses affecting each block face explains conceptually the occurrence of pyramidal keyblocks that are truncated near their apex.

Yow, J.L. Jr.

1985-04-01T23:59:59.000Z

51

Tribochemical investigation of microelectronic materials  

E-Print Network (OSTI)

To achieve efficient planarization with reduced device dimensions in integrated circuits, a better understanding of the physics, chemistry, and the complex interplay involved in chemical mechanical planarization (CMP) is needed. The CMP process takes place at the interface of the pad and wafer in the presence of the fluid slurry medium. The hardness of Cu is significantly less than the slurry abrasive particles which are usually alumina or silica. It has been accepted that a surface layer can protect the Cu surface from scratching during CMP. Four competing mechanisms in materials removal have been reported: the chemical dissolution of Cu, the mechanical removal through slurry abrasives, the formation of thin layer of Cu oxide and the sweeping surface material by slurry flow. Despite the previous investigation of Cu removal, the electrochemical properties of Cu surface layer is yet to be understood. The motivation of this research was to understand the fundamental aspects of removal mechanisms in terms of electrochemical interactions, chemical dissolution, mechanical wear, and factors affecting planarization. Since one of the major requirements in CMP is to have a high surface finish, i.e., low surface roughness, optimization of the surface finish in reference to various parameters was emphasized. Three approaches were used in this research: in situ measurement of material removal, exploration of the electropotential activation and passivation at the copper surface and modeling of the synergistic electrochemical-mechanical interactions on the copper surface. In this research, copper polishing experiments were conducted using a table top tribometer. A potentiostat was coupled with this tribometer. This combination enabled the evaluation of important variables such as applied pressure, polishing speed, slurry chemistry, pH, materials, and applied DC potential. Experiments were designed to understand the combined and individual effect of electrochemical interactions as well as mechanical impact during polishing. Extensive surface characterization was performed with AFM, SEM, TEM and XPS. An innovative method for direct material removal measurement on the nanometer scale was developed and used. Experimental observations were compared with the theoretically calculated material removal rate values. The synergistic effect of all of the components of the process, which result in a better quality surface finish was quantitatively evaluated for the first time. Impressed potential during CMP proved to be a controlling parameter in the material removal mechanism. Using the experimental results, a model was developed, which provided a practical insight into the CMP process. The research is expected to help with electrochemical material removal in copper planarization with low-k dielectrics.

Kulkarni, Milind Sudhakar

2006-08-01T23:59:59.000Z

52

NIST Highlight about investigating nanoscale pattern shape ...  

Science Conference Proceedings (OSTI)

NIST researchers validate new method for investigating nanoscale pattern shape evolution. NIST researchers successfully ...

2010-10-05T23:59:59.000Z

53

Metal Detectives: New Book Details Titanic Investigation  

Science Conference Proceedings (OSTI)

Metal Detectives: New Book Details Titanic Investigation. For Immediate Release: April 15, 2008. ...

2012-10-02T23:59:59.000Z

54

Thermodynamic Investigation of Crystalline Thorium Selenite ...  

Science Conference Proceedings (OSTI)

Page 1. Thermodynamic Investigation of Crystalline Thorium Selenite Monohydrate VP NesterenkoC,S Belarusian National ...

2006-07-20T23:59:59.000Z

55

Evaluating Design Elements in Corrosion Failure Investigations  

Science Conference Proceedings (OSTI)

Accident Investigation and Materials Failure Analysis at the Transportation Safety ... Experimental Technique to Conduct Thermal Shock Test on Refractories...

56

Towards Sustainable Material Usage: Investigating Limits to ...  

Science Conference Proceedings (OSTI)

Presentation Title, Towards Sustainable Material Usage: Investigating Limits to ... secondary resources decreases energy consumption; this energy advantage...

57

DOE Hydrogen Analysis Repository: Investigating Failure in  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigating Failure in Polymer-Electrolyte Fuel Cells Investigating Failure in Polymer-Electrolyte Fuel Cells Project Summary Full Title: Investigating Failure in Polymer-Electrolyte Fuel Cells Project ID: 175 Principal Investigator: John Newman Brief Description: The goal of this project is to understand and mitigate fuel cell failure mechanisms. Keywords: Fuel cell, modeling Purpose This project is conducting fundamental studies of fuel cell failure mechanisms. This includes experiments aimed at meeting the DOE operation and survivability targets at low and subzero temperatures, as well as development of mathematical models and fundamental experiments to improve performance and design against failure phenomena. Performer Principal Investigator: John Newman Organization: Lawrence Berkeley National Laboratory (LBNL)

58

Before the House Subcommittee on Investigations & Oversight ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

& Oversight - Committee on Science, Space, and Technology Before the House Subcommittee on Investigations & Oversight - Committee on Science, Space, and Technology Testimony of...

59

Geothermal: Sponsored by OSTI -- Preliminary investigations of...  

NLE Websites -- All DOE Office Websites (Extended Search)

GEOTHERMAL TECHNOLOGIES LEGACY COLLECTION - Sponsored by OSTI -- Preliminary investigations of the thermal energy grid concept Geothermal Technologies Legacy Collection HelpFAQ |...

60

Geothermal: Sponsored by OSTI -- Laboratory investigation of...  

Office of Scientific and Technical Information (OSTI)

Laboratory investigation of steam adsorption in geothermal reservoir rocks Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic...

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Investigation of Solution Combustion Synthesis and Precipitation ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of Solution Combustion Synthesis and Precipitation Synthesis Conditions on TiO2 and ZnO Nanopowder Characteristics

62

Early Science Program Investigators Meeting | Argonne Leadership...  

NLE Websites -- All DOE Office Websites (Extended Search)

through ambitious scientific computations enabled by the ALCF's Early Science Program (ESP). Investigators from each of the 16 ESP projects will overview their simulation...

63

Investigation of formaldehyde and acetaldehyde sampling rate...  

NLE Websites -- All DOE Office Websites (Extended Search)

formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Title Investigation of formaldehyde and acetaldehyde...

64

NERSC Allocations: For Principal Investigators and Managers  

NLE Websites -- All DOE Office Websites (Extended Search)

Allocations NERSC Allocations: for Principal Investigators and Account Managers Allocations Overview and Eligibility A researcher may apply for an allocation of NERSC resources if...

65

ARM - Publications: Science Team Meeting Documents: Investigation...  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of high ice supersaturation in cirrus clouds using ARM data and an explicit cloud model Comstock, Jennifer Pacific Northwest National Laboratory Lin, Ruei-Fong NASA...

66

Computational and Experimental Investigations into Aerospace Plasmas.  

E-Print Network (OSTI)

??Investigations into two different fields of plasma research are presented here. These include the study of ion engine performance and the use of plasma discharges (more)

Bennett, William Thomas

2008-01-01T23:59:59.000Z

67

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

10 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354...

68

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

January 1 - March 31, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

69

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

09 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354...

70

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

January 1 - March 31, 2012 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

71

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

April 1 - June 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

72

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

NLE Websites -- All DOE Office Websites (Extended Search)

July 1 - September 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

73

Accident Investigation Report Plutonium Contamination in the...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accident Investigation Report Plutonium Contamination in the Zero Power Physics Reactor Facility at the Idaho National Laboratory, November 8, 2011 January 2012 Disclaimer...

74

Investigator Manual Version 3.0  

E-Print Network (OSTI)

Investigator Manual Version 3.0 January 2013 Human Subjects Protection Program The University;Investigator Manual Version 3.0: 01/2013 Page 2 of 70 ©2009 Huron Consulting Services, LLC. Huron Consulting Manual Version 3.0: 01/2013 Page 3 of 70 ©2009 Huron Consulting Services, LLC. Huron Consulting Group Use

Arizona, University of

75

DOE Investigates Possible Air Conditioner Efficiency Violations |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigates Possible Air Conditioner Efficiency Violations Investigates Possible Air Conditioner Efficiency Violations DOE Investigates Possible Air Conditioner Efficiency Violations February 15, 2012 - 5:13pm Addthis The Department of Energy's Office of Enforcement is committed to its compliance enforcement responsibilities with regard to federal energy conservation standards and ensuring that all those subject to the requirements are treated fairly and equally. Today, the Office of Enforcement issued a series of subpoenas as part of an investigation to determine whether manufacturers of split-system air conditioners are making and distributing in the U.S. condensing units that do not meet the current 13 SEER (Seasonal Energy Efficiency Ratio) federal energy conservation standard, which has been the standard since 2006.

76

Nine Steps of a Failure Investigation  

Science Conference Proceedings (OSTI)

Table 1   Field investigation kit contents...Be careful about color. Known color chart, white piece of paper, etc. Kodak grey or color chart, Ace Hardware paint

77

INVESTIGATION OF BULK POWER ERCOT (Texas)  

E-Print Network (OSTI)

INVESTIGATION OF BULK POWER MARKETS ERCOT (Texas) November 1, 2000 The analyses and conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 A. Electric Reliability Council of Texas (ERCOT) . . . . . . . . . . . . . . . . . . . . . . . . 4-2 B. The 1995 Texas Electricity Restructuring Statute

Laughlin, Robert B.

78

Scanning Transmission Electron Microscopy Investigations of Complex...  

NLE Websites -- All DOE Office Websites (Extended Search)

Scanning Transmission Electron Microscopy Investigations of Complex Oxides Monday, May 23, 2011 - 3:30pm SSRL Conference room 137-322 Professor Tom Vogt, NanoCenter & Department of...

79

The Fundamentals of Forensic Investigation Procedures Guidebook  

Science Conference Proceedings (OSTI)

No reference or guideline for the practice of or procedure for analyzing equipment failures and accidents involving electric utility distribution systems has been available until publication of "The Fundamentals of Forensic Investigation Procedures Guidebook."

2003-03-18T23:59:59.000Z

80

Investigation on digitized RF transport over fiber.  

E-Print Network (OSTI)

??Finally, the thesis investigates the power consumptions and energy-saving potentials of the fiber-wireless integration techniques. A mathematical model for estimating the base station power consumption (more)

Yang, Yizhuo

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Investigation of asymmetric plasma blob dynamics  

E-Print Network (OSTI)

The dynamics of asymmetric blobs is investigated in the Versatile Toroidal Facility (VTF) at MIT. Blobs are local regions of enhanced plasma density. Blobs are relevant to several areas of physics research, including fusion ...

Soane, Alexander (Alexander Visotsky)

2009-01-01T23:59:59.000Z

82

2008 Rosalind Franklin Young Investigator Award  

NLE Websites -- All DOE Office Websites (Extended Search)

The 2008 3-Way Meeting The 2008 3-Way Meeting In R&D, Super X-rays Mark Many Spots A New Gas Loading System for Diamond Anvil Cells at GSECARS Sidorowicz Named "Supervisor of the Year" SESS 2007: The School for Environmental Sciences with Synchrotrons APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed 2008 Rosalind Franklin Young Investigator Award APRIL 24, 2008 Bookmark and Share Oleg Shpyrko The Advanced Photon Source (APS) Users Organization has named Oleg G. Shpyrko of the University of California, San Diego, as the recipient of the 2008 Rosalind Franklin Young Investigator Award. The award recognizes an important technical or scientific accomplishment by a young investigator that depended on, or is beneficial to, the APS. Shpyrko will receive the

83

Geothermal Energy Resource Investigations, Chocolate Mountains Aerial  

Open Energy Info (EERE)

Investigations, Chocolate Mountains Aerial Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geothermal Energy Resource Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Details Activities (5) Areas (1) Regions (0) Abstract: The US Navy's Geothermal Program Office (GPO), has conducted geothermal exploration in the Chocolate Mountains Aerial Gunnery Range (CMAGR) since the mid-1970s. At this time, the focus of the GPO had been on the area to the east of the Hot Mineral Spa KGRA, Glamis and areas within the Chocolate Mountains themselves. Using potential field geophysics, mercury surveys and geologic mapping to identify potential anomalies related to recent hydrothermal activity. After a brief hiatus starting in

84

The Salt Defense Disposal Investigations (SDDI)  

NLE Websites -- All DOE Office Websites (Extended Search)

Salt Defense Disposal Investigations (SDDI) Salt Defense Disposal Investigations (SDDI) will utilize a newly mined Underground Research Lab (URL) in WIPP to perform a cost effective, proof-of-principle field test of the emplacement of heat-generating radioactive waste and validate modeling efforts. The goals of the SDDI Thermal Test are to: * Demonstrate a proof-of-principle concept for in-drift disposal in salt. * Investigate, in a specific emplacement concept, the response of the salt to heat. * Develop a full-scale response for run-of- mine (ROM) salt. * Develop a validated coupled process model for disposal of heat-generating wastes in salt. * Evaluate the environmental conditions of the

85

APSUO Announces Rosalind Franklin Young Investigator Award  

NLE Websites -- All DOE Office Websites (Extended Search)

APSUO Announces Rosalind Franklin Young Investigator Award APSUO Announces Rosalind Franklin Young Investigator Award In conjunction with the Advanced Photon Source (APS), the APS Users Organization (APSUO) has established the APSUO Rosalind Franklin Young Investigator Award. The nomination deadline for this award is March 15, 2004. The award will be presented at the 2004 Users Meeting for the Advanced Photon Source, held at Argonne on May 3-6, 2004. Rosalind Franklin Born in 1920, Rosalind Franklin graduated from Cambridge University in 1941 in time to focus on a wartime problem: the composition of coal and charcoal and how to use them most efficiently. She published five papers on the subject before she was 26 years old, work that is still quoted today, and helped launch the field of high-strength carbon fibers. When Franklin had

86

New statistical methods for investigating submarine pockmarks  

Science Conference Proceedings (OSTI)

We investigate the applicability of some novel spatial analysis techniques, developed for studies of astrophysical datasets, to the analysis of spatial point data in sedimentary basins. The techniques are evaluated and compared with standard methods ... Keywords: Pockmarks, Spatial distribution, Statistical methods

Annabel Cartwright; Jennifer Moss; Joe Cartwright

2011-10-01T23:59:59.000Z

87

Stability of Java interfaces: a preliminary investigation  

Science Conference Proceedings (OSTI)

The attribute of stability is regarded by some as an important attribute of software. Some claims regarding software design quality imply that what are called interfaces in Java are stable. This paper introduces some new metrics for investigating ... Keywords: java interface, software metrics, stability

Jonathan Chow; Ewan Tempero

2011-05-01T23:59:59.000Z

88

A LABORATORY INVESTIGATION OF STEAM ADSORPTION  

E-Print Network (OSTI)

A LABORATORY INVESTIGATION OF STEAM ADSORPTION IN GEOTHERMAL RESERVOIR ROCKS OF STANFORD UNIVERSITY, if any, liquid. Yet to satisfy material bal- ance constraints, another phase besides steam must be present. If steam adsorption occurring in significant amounts is not accounted for, the reserves

Stanford University

89

Investigation of a regenerative damping concept  

E-Print Network (OSTI)

This thesis presents a justification for the study of regenerative damping, a general statement of the regenerative damping problem, and a detailed analysis of a specific proposed solution to the regenerative damping problem. Improvement in the efficiency of many physical systems is realized by the incorporation of regenerative devices, and all devices which dissipate power are candidates for investigation as regenerative systems. The viscous damper is a dissipative device which may be suitable for energy regeneration and is therefore investigated as such. Regenerative damping involves storing the power normally dissipated by a passive viscous damper. This task is accomplished by constructing a system which connects an energy storing device to the device being damped. The connecting system must efficiently transfer power from the device being damped to the storage device while simultaneously meeting the operating impedance of the storage device and producing a desired damping impedance. Many physical systems can accomplish this task, and the variable linear transmission is proposed for further investigation. Mathematical, graphical, and computer models are constructed to study the variable linear transmission. These models directly indicate the control strategies necessary to operate the device as a regenerative damper. Studies of kinematic performance and efficiency of the proposed damper indicate that a strong connection exists between the goodness of the performance of the proposed device as a damper and its efficiency. Both of these issues are directly related to the strategy used in the active control of the device.Results indicate that in its ideal state, the proposed damper exactly solves the problem of regenerative damping. For the non-ideal operation of the device, which includes the effects of system actuation dynamics, the performance looks promising but will require more investigation into optimal control strategies. Overall, the prospects for realizing regenerative damping are shown to be positive, and further investigation of this subject is encouraged.

Fodor, Michael Glenn

1993-01-01T23:59:59.000Z

90

ARM Madden-Julian Oscillation Investigation Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

Madden-Julian Oscillation Investigation Experiment Madden-Julian Oscillation Investigation Experiment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

91

Stable isotope investigations of chlorinated aliphatic hydrocarbons.  

Science Conference Proceedings (OSTI)

Stable isotope ratio measurements for carbon (C) and chlorine (Cl) can be used to elucidate the processes affecting transformation and transportation of chlorinated aliphatic hydrocarbons (CAHs) in the environment. Methods recently developed in our laboratory for isotopic analysis of CAHs have been applied to laboratory measurements of the kinetic isotope effects associated with aerobic degradation of dichloromethane (DCM) and with both anaerobic and aerobic cometabolic degradation of trichlomethene (TCE) in batch and column microbial cultures. These experimental determinations of fractionation factors are crucial for understanding the behavior of CAHs in complex natural systems, where the extent of biotransformation can be masked by dispersion and volatilization. We have also performed laboratory investigations of kinetic isotope effects accompanying evaporation of CAHs, as well as field investigations of natural attenuation and in situ remediation of CAHs in a number of contaminated shallow aquifers at sites operated by the federal government and the private sector.

Abrajano, T.; Heraty, L. J.; Holt, B. D.; Huang, L.; Sturchio, N. C.

1999-06-01T23:59:59.000Z

92

Investigating Inflation Persistence in the ACF Domain ?  

E-Print Network (OSTI)

This paper investigates inflation persistence in a panel of 20 OECD economies by means of the sample AutoCorrelation Functions (ACFs). We find that the inflation empirical ACFs display a common behavior across countries, characterized by long-lasting fluctuations around a potentially time-varying mean. Recent contributions in the macroeconomic literature on heterogeneity in price setting and aggregation offer theoretical support to our findings. Moreover, the empirical ACFs are well approximated by a nonlinear and long memory time series process (ACT) which improves over standard linear autoregressive processes. This improvement is robust to variations of the investigated sample. Using the estimated parameters of the ACT functional form as a measure of inflation persistence, we find a negative correlation between persistence and inflation targeting. JEL classification: E50, C22.

Giovanni Caggiano; Efrem Castelnuovo

2007-01-01T23:59:59.000Z

93

Investigation of New Families of HTSC Compounds  

Science Conference Proceedings (OSTI)

The discovery of the new family of copper-oxide superconductors has opened an area of exciting new materials science with enormous potential for practical developments in technology and engineering. However, this should not stop the search for new higher temperature or higher current carrying superconductors. This project investigated the doping of copper chloride to achieve superconductivity. Discovery of new families of superconductors may provide us with more power applications.

1995-03-17T23:59:59.000Z

94

Investigating Extreme Ultraviolet Lithography Mask Defects  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigating Extreme Investigating Extreme Ultraviolet Lithography Mask Defects Investigating Extreme Ultraviolet Lithography Mask Defects Print Wednesday, 28 July 2010 00:00 Since the 1970s, the semiconductor industry has strived to shrink the cost and size of circuit patterns printed onto computer chips in accordance with Moore's law, doubling the number of transistors on a computer's central processing unit (CPU) every two years. The introduction of extreme ultraviolet (EUV) lithography, printing chips using 13-nm-wavelength light, opens the way to future generations of smaller, faster, and cheaper semiconductors. EUV lithography relies on specialized lenses made of curved mirrors with reflective coatings called multilayers to print patterns with high resolution. One special flat mirror called a mask is particularly sensitive to even the smallest imperfections. To better detect and characterize mask defects, scientists at Berkeley Lab worked with SEMATECH, an international semiconductor industry consortium, to create a unique Fresnel zone-plate microscope on Advanced Light Source Beamline 11.3.2 called the SEMATECH Berkeley Actinic Inspection Tool (AIT).

95

Clean slate corrective action investigation plan  

SciTech Connect

The Clean Slate sites discussed in this report are situated in the central portion of the Tonopah Test Range (TTR), north of the Nevada Test Site (NTS) on the northwest portion of the Nellis Air Force Range (NAFR) which is approximately 390 kilometers (km) (240 miles [mi]) northwest of Las Vegas, Nevada. These sites were the locations for three of the four Operation Roller Coaster experiments. These experiments evaluated the dispersal of plutonium in the environment from the chemical explosion of a plutonium-bearing device. Although it was not a nuclear explosion, Operation Roller Coaster created some surface contamination which is now the subject of a corrective action strategy being implemented by the Nevada Environmental Restoration Project (NV ERP) for the U.S. Department of Energy (DOE). Corrective Action Investigation (CAI) activities will be conducted at three of the Operation Roller Coaster sites. These are Clean Slate 1 (CS-1), Clean Slate 2 (CS-2), and Clean Slate 3 (CS-3) sites, which are located on the TTR. The document that provides or references all of the specific information relative to the various investigative processes is called the Corrective Action Investigation Plan (CAIP). This CAIP has been prepared for the DOE Nevada Operations Office (DOE/NV) by IT Corporation (IT).

NONE

1996-05-01T23:59:59.000Z

96

Investigation of optical methods for hydroyield measurements  

SciTech Connect

Two fiber optic techniques, the Linear Resistive Ladder (LRL) and the piezo-driven LED arrangement, were investigated and successfully demonstrated in the laboratory to be capable of being used for hydroyield measurements. Prototype linear arrangements for each of the above methods were constructed and placed in a designed UGT. The piezo-driven LED method appears very attractive as it showed the potential for becoming an all passive, non-intrusive'' treaty verification method capable of functioning at stress levels ranging from less than 1Kbar to 100 Kbars. Other optical methods using fiber optics for detection mechanisms and signal transmissions were also conceptually examined. 11 figs.

Charest, J.A.; Lynch, C.S. (Dynasen, Inc., Goleta, CA (USA))

1990-01-01T23:59:59.000Z

97

Investigation of restricted baby Skyrme models  

Science Conference Proceedings (OSTI)

A restriction of the baby Skyrme model consisting of the quartic and potential terms only is investigated in detail for a wide range of potentials. Further, its properties are compared with those of the corresponding full baby Skyrme models. We find that topological (charge) as well as geometrical (nucleus/shell shape) features of baby Skyrmions are captured already by the soliton solutions of the restricted model. Further, we find a coincidence between the compact or noncompact nature of solitons in the restricted model, on the one hand, and the existence or nonexistence of multi-Skyrmions in the full baby Skyrme model, on the other hand.

Adam, C. [Departamento de Fisica de Particulas, Universidad de Santiago, and Instituto Galego de Fisica de Altas Enerxias (IGFAE) E-15782 Santiago de Compostela (Spain); Romanczukiewicz, T.; Wereszczynski, A. [Institute of Physics, Jagiellonian University, Reymonta 4, Krakow (Poland); Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Universidad de Santiago, and Instituto Galego de Fisica de Altas Enerxias (IGFAE) E-15782 Santiago de Compostela (Spain)

2010-04-15T23:59:59.000Z

98

Investigation of restricted baby Skyrme models  

E-Print Network (OSTI)

A restriction of the baby Skyrme model consisting of the quartic and potential terms only is investigated in detail for a wide range of potentials. Further, its properties are compared with those of the corresponding full baby Skyrme models. We find that topological (charge) as well as geometrical (nucleus/shell shape) features of baby skyrmions are captured already by the soliton solutions of the restricted model. Further, we find a coincidence between the compact or non-compact nature of solitons in the restricted model, on the one hand, and the existence or non-existence of multi-skyrmions in the full baby Skyrme model, on the other hand.

Adam, C; Sanchez-Guillen, J; Wereszczynski, A

2010-01-01T23:59:59.000Z

99

Investigating Extreme Ultraviolet Lithography Mask Defects  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigating Extreme Ultraviolet Lithography Mask Defects Print Investigating Extreme Ultraviolet Lithography Mask Defects Print Since the 1970s, the semiconductor industry has strived to shrink the cost and size of circuit patterns printed onto computer chips in accordance with Moore's law, doubling the number of transistors on a computer's central processing unit (CPU) every two years. The introduction of extreme ultraviolet (EUV) lithography, printing chips using 13-nm-wavelength light, opens the way to future generations of smaller, faster, and cheaper semiconductors. EUV lithography relies on specialized lenses made of curved mirrors with reflective coatings called multilayers to print patterns with high resolution. One special flat mirror called a mask is particularly sensitive to even the smallest imperfections. To better detect and characterize mask defects, scientists at Berkeley Lab worked with SEMATECH, an international semiconductor industry consortium, to create a unique Fresnel zone-plate microscope on Advanced Light Source Beamline 11.3.2 called the SEMATECH Berkeley Actinic Inspection Tool (AIT).

100

Investigating Extreme Ultraviolet Lithography Mask Defects  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigating Extreme Ultraviolet Lithography Mask Defects Print Investigating Extreme Ultraviolet Lithography Mask Defects Print Since the 1970s, the semiconductor industry has strived to shrink the cost and size of circuit patterns printed onto computer chips in accordance with Moore's law, doubling the number of transistors on a computer's central processing unit (CPU) every two years. The introduction of extreme ultraviolet (EUV) lithography, printing chips using 13-nm-wavelength light, opens the way to future generations of smaller, faster, and cheaper semiconductors. EUV lithography relies on specialized lenses made of curved mirrors with reflective coatings called multilayers to print patterns with high resolution. One special flat mirror called a mask is particularly sensitive to even the smallest imperfections. To better detect and characterize mask defects, scientists at Berkeley Lab worked with SEMATECH, an international semiconductor industry consortium, to create a unique Fresnel zone-plate microscope on Advanced Light Source Beamline 11.3.2 called the SEMATECH Berkeley Actinic Inspection Tool (AIT).

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

(90377) SEDNA: INVESTIGATION OF SURFACE COMPOSITIONAL VARIATION  

Science Conference Proceedings (OSTI)

The dwarf planet (90377) Sedna is one of the most remote solar system objects accessible to investigations. To better constrain its surface composition and to investigate the possible heterogeneity of the surface of Sedna, several observations have been carried out at ESO-VLT with the powerful spectrometer SINFONI observing simultaneously the H and K bands. The analyzed spectra (obtained in 2005, 2007, and 2008) show a non-uniform spectral signature, particularly in the K band. Spectral modeling using the Shkuratov radiative transfer code for surface scattering has been performed using the various sets of data, including previous observations at visible wavelengths and photometry at 3.6 and 4.5 {mu}m by the Spitzer Space Telescope. The visible and near-infrared spectra can be modeled with organic materials (triton and titan tholin), serpentine, and H{sub 2}O ice in fairly significant amounts, and CH{sub 4}, N{sub 2}, and C{sub 2}H{sub 6} in varying trace amounts. One of the spectra obtained in 2005 October shows a different signature in the K band and is best modeled with CH{sub 3}OH in place of CH{sub 4}, with reduced amounts of serpentine and with the addition of olivine. The compositional surface heterogeneity can give input on the past history as well clues to the origin of this peculiar, distant object.

Barucci, M. A.; De Bergh, C.; Merlin, F. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon Cedex (France); Morea Dalle Ore, C.; Cruikshank, D. [NASA Ames Research Centerg, Moffett Field, CA 94035-1000 (United States); Alvarez-Candal, A.; Dumas, C., E-mail: antonella.barucci@obspm.f [ESO, Alonso de Cordova 3107, Vitacura Casilla 19001, Santiago 19 (Chile)

2010-12-15T23:59:59.000Z

102

Salmon Site Remedial Investigation Report, Exhibit 5  

Science Conference Proceedings (OSTI)

This Salmon Site Remedial Investigation Report provides the results of activities initiated by the U.S. Department of Energy (DOE) to determine if contamination at the Salmon Site poses a current or future risk to human health and the environment. These results were used to develop and evaluate a range of risk-based remedial alternatives. Located in Lamar County, Mississippi, the Salmon Site was used by the U.S. Atomic Energy Commission (predecessor to the DOE) between 1964 and 1970 for two nuclear and two gas explosions conducted deep underground in a salt dome. The testing resulted in the release of radionuclides into the salt dome. During reentry drilling and other site activities, liquid and solid wastes containing radioactivity were generated resulting in surface soil and groundwater contamination. Most of the waste and contaminated soil and water were disposed of in 1993 during site restoration either in the cavities left by the tests or in an injection well. Other radioactive wastes were transported to the Nevada Test Site for disposal. Nonradioactive wastes were disposed of in pits at the site and capped with clean soil and graded. The preliminary investigation showed residual contamination in the Surface Ground Zero mud pits below the water table. Remedial investigations results concluded the contaminant concentrations detected present no significant risk to existing and/or future land users, if surface institutional controls and subsurface restrictions are maintained. Recent sampling results determined no significant contamination in the surface or shallow subsurface. The test cavity resulting from the experiments is contaminated and cannot be economically remediated with existing technologies. The ecological sampling did not detect biological uptake of contaminants in the plants or animals sampled. Based on the current use of the Salmon Site, the following remedial actions were identified to protect both human health and the environment: (1) the installation of a water supply system that will provide potable water to the site and residence in the proximity to the site; (2) continued maintenance of surface institutional controls and subsurface restrictions; and (3) continue to implement the long-term hydrologic monitoring program. The Salmon Site will be relinquished the State of Mississippi as mandated by Public Law 104-201-September 23, 1996, to be used as a demonstration forest/wildlife refuge. Should the land use change in the future and/or monitoring information indicates a change in the site conditions, the DOE will reassess the risk impacts to human health and the environment.

USDOE /NV

1999-09-01T23:59:59.000Z

103

Art Scene Investigation: Picasso goes Nanotech  

NLE Websites -- All DOE Office Websites (Extended Search)

Linda Young of APS Elected Vice Chair of DAMOP Linda Young of APS Elected Vice Chair of DAMOP Moffat of BioCARS and U. of C. Receives 2011 ACA Patterson Award Argonne's Fenter Wins Warren Award for X-ray Diffraction Studies Lahsen Assoufid Elected a Fellow of SPIE 2011 Arthur H. Compton Award Announced by APSUO APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed Art Scene Investigation: Picasso goes Nanotech AUGUST 8, 2011 Bookmark and Share Beamline scientist Volker Rose (Argonne National Laboratory) inside the control room [of the nanoprobe x-ray beamline at the APS]. At right, tools of the trade, and our Picasso sample (try to spot the almost invisible white paint chip hanging in the circular hole!) From the Art Institute of Chicago ARTicle blog entry by Francesca Casadio,

104

Numerical Investigations of Kuiper Belt Binaries  

E-Print Network (OSTI)

Observations of the Kuiper Belt indicate that a larger than expected percentage of KBO's (approximately 8 out of 500) are in binary pairs. The formation and survival of such objects presents a conundrum [1]. Two competing theories have been postulated to try to solve this problem. One entails the physical collision of bodies [2] while the other utilizes dynamical friction or a third body to dissipate excess momentum and energy from the system [3]. Although in general known binaries tend to differ significantly in mass, such as seen in the Earth-Moon or asteroid binary systems [4], Kuiper binaries discovered to date tend to instead be of similar size [5, 6]. This paper investigates the stability, development and lifetimes for Kuiper Belt binaries by tracking their orbital dynamics and subsequent evolution. Section two details the numerical model while Section three discusses the initial conditions. Finally, in Section four the results are discussed with Section five containing the conclusions.

R. C. Nazzario; T. W. Hyde

2005-01-20T23:59:59.000Z

105

Investigation of flow characteristics of gas turbines  

SciTech Connect

Measurements carried out in the process of assimilation of gas turbine (GT) plants of 16 different types in starting and working conditions to estimate the operational conditions and characteristics of the main elements (in particular of the turbines) have created a basis for generaliztion of flow characteristics of different turbines and for extending them to a wider range of operational conditions. The studies showed that: flow characteristics of the investigated turbines, independently of the number of stages and the degree of reaction, are described by the elliptic flowrate equation; throughput of similar turbines, i.e., of turbines formed of stages with high reaction, which have low design degrees of expansion, can be determined with satisfactory accuracy by the unique function of the degree of expansion; and in operating the gas turbine plants considerable changes in throughput of the turbines are possible.

Ol' khovskii, G.G.; Ol' khovskaya, N.I.

1978-01-01T23:59:59.000Z

106

Susanville Geothermal Investigations, California, Special Report  

DOE Green Energy (OSTI)

This report documents the investigations by the Bureau of Reclamation and others of the geothermal resource potential of the Susanville-Honey Lake Valley area, California, made during 1975 and the early part of 1976. Included are discussions on the nature of the resource and the analyses of the data gathered. Susanville is located in northeastern California about 210 miles (330 kilometers) northeast of San Francisco. The purpose of the study was to appraise the geothermal resources in the Susanville-Honey Lake area within the constraints of limited funds and available personnel. The main thrust of the studies consisted of: gathering and analyzing existing data; conducting and evaluating an electrical resistivity survey and an aerial thermal infrared survey; and drilling and logging of temperature gradient holes. The heat flow or energy potential of the resource was not determined.

none

1976-06-01T23:59:59.000Z

107

MAGIC: Marine ARM GPCI Investigation of Clouds  

SciTech Connect

The second Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF2) will be deployed aboard the Horizon Lines cargo container ship merchant vessel (M/V) Spirit for MAGIC, the Marine ARM GPCI1 Investigation of Clouds. The Spirit will traverse the route between Los Angeles, California, and Honolulu, Hawaii, from October 2012 through September 2013 (except for a few months in the middle of this time period when the ship will be in dry dock). During this field campaign, AMF2 will observe and characterize the properties of clouds and precipitation, aerosols, and atmospheric radiation; standard meteorological and oceanographic variables; and atmospheric structure. There will also be two intensive observational periods (IOPs), one in January 2013 and one in July 2013, during which more detailed measurements of the atmospheric structure will be made.

Lewis, ER; Wiscombe, WJ; Albrecht, BA; Bland, GL; Flagg, CN; Klein, SA; Kollias, P; Mace, G; Reynolds, RM; Schwartz, SE; Siebesma, AP; Teixeira, J; Wood, R; Zhang, M

2012-10-03T23:59:59.000Z

108

POLAR Investigation of the Sun - POLARIS  

E-Print Network (OSTI)

The POLAR Investigation of the Sun (POLARIS) mission uses a combination of a gravity assist and solar sail propulsion to place a spacecraft in a 0.48 AU circular orbit around the Sun with an inclination of 75 degrees with respect to solar equator. This challenging orbit is made possible by the challenging development of solar sail propulsion. This first extended view of the high-latitude regions of the Sun will enable crucial observations not possible from the ecliptic viewpoint or from Solar Orbiter. While Solar Orbiter would give the first glimpse of the high latitude magnetic field and flows to probe the solar dynamo, it does not have sufficient viewing of the polar regions to achieve POLARIS' primary objective : determining the relation between the magnetism and dynamics of the Sun's polar regions and the solar cycle.

T. Appourchaux; P. Liewer; M. Watt; D. Alexander; V. Andretta; F. Auchere; P. D'Arrigo; J. Ayon; T. Corbard; S. Fineschi; W. Finsterle; L. Floyd; G. Garbe; L. Gizon; D. Hassler; L. Harra; A. Kosovichev; J. Leibacher; M. Leipold; N. Murphy; M. Maksimovic; V. Martinez-Pillet; B. S. A. Matthews; R. Mewaldt; D. Moses; J. Newmark; S. Regnier; W. Schmutz; D. Socker; D. Spadaro; M. Stuttard; C. Trosseille; R. Ulrich; M. Velli; A. Vourlidas; C. R. Wimmer-Schweingruber; T. Zurbuchen

2008-05-28T23:59:59.000Z

109

Weapons test seismic investigations at Yucca Mountain  

Science Conference Proceedings (OSTI)

Yucca Mountain, located on and adjacent to the Nevada Test Site, is being characterized as part of an ongoing effort to identify a potential high-level nuclear waste repository. This site will be subjected to seismic ground motions induced by underground nuclear explosions. A knowledge of expected ground motion levels from these tests will enable the designers to provide for the necessary structural support in the designs of the various components of the repository. The primary objective of the Weapons Test Seismic Investigation project is to develop a method to predict the ground motions expected at the repository site as a result of future weapons tests. This paper summarizes the data base presently assembled for the Yucca Mountain Project, characteristics of expected ground motions, and characterization of the two-dimensional seismic properties along paths between Yucca Mountain and the testing areas of the Nevada Test Site.

Phillips, J.S.; Shephard, L.E.; Walck, M.C.

1991-01-01T23:59:59.000Z

110

An investigation into Facebook friend grouping  

E-Print Network (OSTI)

Abstract. With increasingly large friend networks, Facebook users may be losing sight of exactly with whom they are sharing content they post to Facebook. When Facebook released a new privacy interface in summer 2010 they simplified privacy controls; however, group-based permissions remain at the core of fine-grained privacy control. In order to use these fine-grained controls, users must be able to accurately and usefully specify friend groups. In a series of 46 semi-structured interviews, we investigated how participants group their online friends using four different grouping methods. Our results show that these different mechanisms alter the strategies and groups that users create, that groups created a priori need further refinement before they can adequately address privacy decisions, and that users are adapting their online behavior to avoid the need to specify groups in the current Facebook interface. We conclude with several recommendations that would allow users improved group-based access control.

Patrick Gage Kelley; Robin Brewer; Yael Mayer; Lorrie Faith Cranor; Norman Sadeh

2011-01-01T23:59:59.000Z

111

TMI-2 Vessel Investigation Project integration report  

Science Conference Proceedings (OSTI)

The Three Mile Island Unit 2 (TMI-2) Vessel Investigation Project (VIP) was an international effort that was sponsored by the Nuclear Energy Agency of the Organization for Economic Cooperation and Development. The primary objectives of the VIP were to extract and examine samples from the lower head and to evaluate the potential modes of failure and the margin of structural integrity that remained in the TMI-2 reactor vessel during the accident. This report presents a summary of the major findings and conclusions that were developed from research during the VIP. Results from the various elements of the project are integrated to form a cohesive understanding of the vessel`s condition after the accident.

Wolf, J. R.; Rempe, J. L.; Stickler, L. A.; Korth, G. E.; Diercks, D. R.; Neimark, L. A.; Akers, D W; Schuetz, B. K.; Shearer, T L; Chavez, S. A.; Thinnes, G. L.; Witt, R. J.; Corradini, M L; Kos, J. A. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1994-03-01T23:59:59.000Z

112

Investigations into coal coprocessing and coal liquefaction  

DOE Green Energy (OSTI)

The conversion of coal to liquid suitable as feedstock to a petroleum refinery is dependent upon several process variables. These variables include temperature, pressure, coal rank, catalyst type, nature of the feed to the reactor, type of process, etc. Western Research Institute (WRI) has initiated a research program in the area of coal liquefaction to address the impact of some of these variables upon the yield and quality of the coal-derived liquid. The principal goal of this research is to improve the efficiency of the coal liquefaction process. Two different approaches are currently being investigated. These include the coprocessing of a heavy liquid, such as crude oil, and coal using a dispersed catalyst and the direct liquefaction of coal using a supported catalyst. Another important consideration in coal liquefaction is the utilization of hydrogen, including both externally- and internally-supplied hydrogen. Because the incorporation of externally-supplied hydrogen during conversion of this very aromatic fossil fuel to, for example, transportation fuels is very expensive, improved utilization of internally-supplied hydrogen can lead to reducing processing costs. The objectives of this investigation, which is Task 3.3.4, Coal Coprocessing, of the 1991--1992 Annual Research Plan, are: (1) to evaluate coal/oil pretreatment conditions that are expected to improve the liquid yield through more efficient dispersion of an oil-soluble, iron-based catalyst, (2) to characterize the coke deposits on novel, supported catalysts after coal liquefaction experiments and to correlate the carbon skeletal structure parameters of the coke deposit with catalyst performance as measured by coal liquefaction product yield, and (3) to determine the modes of hydrogen utilization during coal liquefaction and coprocessing. Experimental results are discussed in this report.

Guffey, F.D.; Netzel, D.A.; Miknis, F.P.; Thomas, K.P. [Western Research Inst., Laramie, WY (United States); Zhang, Tiejun; Haynes, H.W. Jr. [Wyoming Univ., Laramie, WY (United States). Dept. of Chemical Engineering

1994-06-01T23:59:59.000Z

113

Wood Pulp Digetster Wall Corrosion Investigation  

DOE Green Energy (OSTI)

The modeling of the flow in a wood pulp digester is but one component of the investigation of the corrosion of digesters. This report describes the development of a Near-Wall-Model (NWM) that is intended to couple with a CFD model that determines the flow, heat, and chemical species transport and reaction within the bulk flow of a digester. Lubrication theory approximations were chosen from which to develop a model that could determine the flow conditions within a thin layer near the vessel wall using information from the interior conditions provided by a CFD calculation of the complete digester. The other conditions will be determined by coupled solutions of the wood chip, heat, and chemical species transport and chemical reactions. The NWM was to couple with a digester performance code in an iterative fashion to provide more detailed information about the conditions within the NW region. Process Simulations, Ltd (PSL) is developing the digester performance code. This more detailed (and perhaps more accurate) information from the NWM was to provide an estimate of the conditions that could aggravate the corrosion at the wall. It is intended that this combined tool (NWM-PSL) could be used to understand conditions at/near the wall in order to develop methods to reduce the corrosion. However, development and testing of the NWM flow model took longer than anticipated and the other developments (energy and species transport, chemical reactions and linking with the PSL code) were not completed. The development and testing of the NWM are described in this report. In addition, the investigation of the potential effects of a clear layer (layer reduced in concentration of wood chips) near the wall is reported in Appendix D. The existence of a clear layer was found to enhance the flow near the wall.

Giles, GE

2003-09-18T23:59:59.000Z

114

Welcome to Early Science Program Investigators Meeting  

NLE Websites -- All DOE Office Websites (Extended Search)

Early Science Program Early Science Program Investigators Meeting Timothy J . W illiams Argonne L eadership C ompu2ng F acility 2 At Argonne, Safety is First! § In c ase o f a n e mergency o r i njury, d ial 9 11 f rom t he building p hones, o r d ial 6 30---252---1911 f rom c ell p hones. § Fire: A lways b e a ware o f t he n earest e xit. - If t he b uilding a larms s ound, e vacuate t he b uilding a nd p roceed t o the r eloca9on a rea ( building 2 13). - If a s ite---wide a larm s ounds, f ollow t he d irec9ons i ssued o ver t he public a nnouncement s ystem. § Tornado: I n t he e vent o f a t ornado, a t one a nd announcement will come from the public announcement s ystem. S eek s helter i mmediately i n t he nearest s tairwell. § Smoking i n n ot p ermiLed i n b uilding 2 40. S moking i s permiLed o nly i n t he d esignated

115

Salmon Site Remedial Investigation Report - Volume I  

Office of Legacy Management (LM)

494-VOL I/REV 1 494-VOL I/REV 1 U.S. Department of Energy Nevada Operations Office E nv i r onm ent al R es t or at i on D i v i s i on N ev ada E nv i r onm ent al R es t or at i on Pr oj ect S al m on S i t e R em edi al Inv es t i gat i on R epor t Vol u m e I R ev i s i on N o. : 1 S ept em ber 1999 Approved for public release; further dissemination unlimited. This page intentionally left blank DOE/NV--494-VOL I/REV 1 SALMON SITE REMEDIAL INVESTIGATION REPORT DOE Nevada Operations Office Las Vegas, Nevada Revision No.: 1 September 1999 Approved for public release; further dissemination unlimited. Available to the public from - U.S. Department of Commerce National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 (703) 487-4650 Available electronically at http://www.doe.gov/bridge. Available to U.S. Department of Energy and its contractors in paper from -

116

Investigating isomorphs with the topological cluster classification  

E-Print Network (OSTI)

Isomorphs are lines in the density-temperature plane of certain "strongly-correlating" or "Roskilde simple" liquids where two-point structure and dynamics have been shown to be close to identical up to a scale transformation. Here we consider such a liquid, a Lennard-Jones glassformer, and investigate the behavior along isomorphs of higher-order structural and dynamical correlations. We then consider an inverse power law reference system mapped to the Lennard-Jones system [Pedersen et al., Phys. Rev. Lett. 105, 157801 (2010)]. Using the topological cluster classification to identify higher-order structures, in both systems we find bicapped square anti-prisms, which are known to be a locally favored structure in the Lennard-Jones glassformer. The population of these locally favored structures is up to 80% higher in the Lennard-Jones system than the equivalent inverse power law system. The structural relaxation time of the two systems, on the other hand, is almost identical, and the four-point dynamical susceptibility is marginally higher in the inverse power law system. Upon cooling the lifetime of the locally favored structures in the Lennard-Jones system are up to 40% higher relative to the reference system.

Alex Malins; Jens Eggers; C. Patrick Royall

2013-07-21T23:59:59.000Z

117

Hazardous waste site investigations: Towards better decisions  

Science Conference Proceedings (OSTI)

The Oak Ridge National Laboratory (ORNL) Life Sciences Symposia series is conducted under the Associate Director for Environmental, Life, and Social Sciences. This series began in 1978 and it provides a forum to discuss subjects of interest to the US Department of Energy, the scientific community, and the public. The Tenth ORNL Life Sciences Symposium focused on key aspects of measurements made at hazardous waste sites and their impact on the decision-making process. In particular, the symposium was concerned with how field measurements could be improved to provide greater quality and quantity of data at less cost and in less time. Presentations and papers presented in this publication provide a critical review of the current status in their respective areas of interest. An effort has been made to identify existing deficiencies, future directions, and needed research. Experts were brought together to present data on the state-of-the-art hazardous waste site investigations in four major areas: Individual projects are processed separately for the databases.

Gammage, R.B.; Berven, B.A. [eds.] [Oak Ridge National Lab., TN (United States)

1992-12-31T23:59:59.000Z

118

Investigating Dark Energy with Black Hole Binaries  

E-Print Network (OSTI)

The accelerated expansion of the universe is ascribed to the existence of dark energy. Black holes accretion of dark energy induces a mass change proportional to the energy density and pressure of the background dark energy fluid. The time scale during which the mass of black holes changes considerably is too long relative to the age of the universe, thus beyond detection possibilities. We propose to take advantage of the modified black hole masses for exploring the equation of state $w[z]$ of dark energy, by investigating the evolution of supermassive black hole binaries on a dark energy background. Deriving the signatures of dark energy accretion on the evolution of binaries, we find that dark energy imprints on the emitted gravitational radiation and on the changes in the orbital radius of the binary can be within detection limits for certain supermassive black hole binaries. In this talk I describe how binaries can provide a useful tool in obtaining complementary information on the nature of dark energy, based on the work done with A.Kelleher.

Laura Mersini-Houghton; Adam Kelleher

2009-06-08T23:59:59.000Z

119

Investigation of global Alfven instabilities in TFTR  

Science Conference Proceedings (OSTI)

Toroidal Alfven Eigenmodes (TAE) were excited by the energetic neutral beam ions tangentially injected into TFTR plasmas at low magnetic field such that the injection velocities were comparable to the Alfven speed. The modes were identified by measurements from Mirnov coils and beam emission spectroscopy (BES). TAE modes appear in bursts whose repetition rate increases with beam power. The neutron emission rate exhibits sawtooth-like behavior and the crashes always coincide with TAE bursts. This indicates ejection of fast ions from the plasma until these modes are stabilized. The dynamics of growth and stabilization was investigated at various plasma current and magnetic field. The results indicate that the instability can effectively clamp the number of energetic ions in the plasma. The observed instability threshold is discussed in the light of recent theories. In addition to these TAE modes, intermittent oscillations at three times the fundamental TAE frequency were observed by Mirnov coils, but no corresponding signal was found in BES. It appears that these high frequency oscillations do not have direct effect on the plasma neutron source strength.

Wong, K.L.; Paul, S.F.; Fredrickson, E.D.; Nazikian, R.; Park, H.K.; Bell, M.; Bretz, N.L.; Budny, R.; Cheng, C.Z.; Cohen, S.; Hammett, G.W.; Jobes, F.C.; Johnson, L.; Meade, D.M.; Medley, S.S.; Mueller, D.; Nagayama, Y.; Owens, D.K.; Synakowski, E.J. [Princeton Univ., NJ (United States). Plasma Physics Lab.; Durst, R.; Fonck, R.J. [Wisconsin Univ., Madison, WI (United States); Roberts, D.R. [Texas Univ., Austin, TX (United States); Sabbagh, S. [Columbia Univ., New York, NY (United States)

1992-01-01T23:59:59.000Z

120

Before House Subcommittee on Oversight and Investigations - Committee...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

House Subcommittee on Oversight and Investigations - Committee on Energy and Commerce Before House Subcommittee on Oversight and Investigations - Committee on Energy and Commerce...

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

House Subcommittee on Oversight and Investigations of the Committee...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oversight and Investigations of the Committee on Energy and Commerce House Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce April 20, 2007 -...

122

Before The Subcommittee on Oversight and Investigations - House...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Subcommittee on Oversight and Investigations - House Committee on Energy and Commerce Before The Subcommittee on Oversight and Investigations - House Committee on Energy and...

123

Before the House Subcommittee on Oversight and Investigations...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oversight and Investigations Before the House Subcommittee on Oversight and Investigations Testimony of Jonathan Silver, Executive Director Loan Programs Office, U.S. Department of...

124

Before the House Science and Technology Subcommittee on Investigations...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

on Investigations and Oversight Before the House Science and Technology Subcommittee on Investigations and Oversight Before the House Science and Technology Subcommittee on...

125

Before the Subcommittee on Oversight and Investigations - House...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oversight and Investigations - House Committee on Energy and Commerce Before the Subcommittee on Oversight and Investigations - House Committee on Energy and Commerce Testimony of...

126

Testimony Before the House Subcommittee on Oversight and Investigation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

House Subcommittee on Oversight and Investigations - Committee on Energy and Commerce Testimony Before the House Subcommittee on Oversight and Investigations - Committee on Energy...

127

Web Based Course: SAF-230DE, Accident Investigation Overview...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Web Based Course: SAF-230DE, Accident Investigation Overview Promotional Video Web Based Course: SAF-230DE, Accident Investigation Overview Promotional Video September 20, 2013 -...

128

Investigations of silica alcogel aging using coherent light  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigations of silica alcogel aging using coherent light Title Investigations of silica alcogel aging using coherent light Publication Type Journal Article Year of Publication...

129

Low Dose Investigator one of Canada's Top 40  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Dose Investigator one of Canada's Top 40 Olga Kovalchuk Congratulations to Low Dose Radiation Research Program investigator Olga Kovalchuk on being named one of "Canada's Top...

130

Geology and Groundwater Investigation Many Devils Wash, Shiprock...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geology and Groundwater Investigation Many Devils Wash, Shiprock Site, New Mexico Geology and Groundwater Investigation Many Devils Wash, Shiprock Site, New Mexico Geology and...

131

Investigation of coal structure. Final report  

SciTech Connect

A better understanding of coal structure is the first step toward more effective utilization of the most abundant hydrocarbon resource. Detailed characterization of coal structure is very difficult, even with today`s highly developed analytical techniques. This is primarily due to the amorphous nature of these high-molecular-weight mixtures. Coal has a polymeric character and has been popularly represented as a three-dimensional cross-linked network. There is, however, little or no information which positively verifies this model. The principal objective of this research was to further investigate the physical structure of coal and to determine the extent to which coal molecules may be covalently cross-linked and/or physically associated. Two common characterization methods, swellability and extractability, were used. A technique modifying the conventional swelling procedure was established to better determine network or associated model conformation. A new method for evaluating coal swelling involving laser scattering has also been developed. The charge-transfer interaction is relatively strong in high-volatile bituminous coal. Soaking in the presence of electron donors and acceptors proved effective for solubilizing the coal, but temperatures in excess of 200 C were required. More than 70 wt% of the coal was readily extracted with pyridine after soaking. Associative/dissociative equilibria of coal molecules were observed during soaking. From these results, the associated model has gained credibility over the network model as the representative structure of coal. Significant portions of coal molecules are unquestionably physically associated, but the overall extent is not known at this time.

Nishioka, Masaharu

1994-03-01T23:59:59.000Z

132

PRISE: petroleum resource investigation summary and evaluation  

E-Print Network (OSTI)

As conventional resources are depleted, unconventional gas (UG: gas from tight sands, coal beds, and shale) resources are becoming increasingly important to U.S and world energy supply. The volume of UG resources is generally unknown in most international basins. However, in 25 mature U.S. basins, UG resources have been produced for decades and are well characterized in the petroleum literature. The objective of this work was to develop a method for estimating recoverable UG resources in target, or exploratory, basins. The method was based on quantitative relations between known conventional and unconventional hydrocarbon resource types in mature U.S. basins. To develop the methodology to estimate resource volumes, we used data from the U.S. Geological Survey, Potential Gas Committee, Energy Information Administration, National Petroleum Council, and Gas Technology Institute to evaluate relations among hydrocarbon resource types in the Appalachian, Black Warrior, Greater Green River, Illinois, San Juan, Uinta-Piceance, and Wind River basins. We chose these seven basins because they are mature basins for both conventional and unconventional oil and gas production. We assumed that a seven basin study would be sufficient for preliminary gas resource analysis and assessment of the new methodology. We developed a methodology we call PRISE, which uses software that investigates relationships among data published for both conventional and unconventional resources in the seven mature U.S. basins. PRISE was used to predict recoverable UG resources for target basins, on the basis of their known conventional resources. Input data for PRISE were cumulative production, proved reserves, growth, and undiscovered resources. We used published data to compare cumulative technically recoverable resources for each basin. For the seven basins studied, we found that 10% of the recoverable hydrocarbon resources are conventional oil and gas, and 90% are from unconventional resources. PRISE may be used to estimate the volume of hydrocarbon resources in any basin worldwide and, hopefully, assist early economic and development planning. PRISE methodology for estimating UG resources should be further tested in diverse sedimentary basin types.

Old, Sara

2008-08-01T23:59:59.000Z

133

SAF-230DE - Web Based Course: Accident Investigation Overview | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SAF-230DE - Web Based Course: Accident Investigation Overview SAF-230DE - Web Based Course: Accident Investigation Overview SAF-230DE - Web Based Course: Accident Investigation Overview September 18, 2013 - 10:52am Addthis SAF-230DE - Web Based Course: Accident Investigation Overview The Office of Health Safety and Security (HSS) National Training Center (NTC) in collaboration with the HSS Accident Investigation Program (HS-24) has developed and released a course that provides an overview of the fundamentals of accident investigation. This course is intended to meet the every five year refresher training requirement for DOE Federal Accident Investigators under DOE Order 225.1B "Accident Investigations", and serves as an orientation to other DOE Federal Accident Investigation Board Members who need a basic knowledge of

134

DOE Closes Investigation of Arcelik's Blomberg Refrigerator | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Arcelik's Blomberg Refrigerator Arcelik's Blomberg Refrigerator DOE Closes Investigation of Arcelik's Blomberg Refrigerator September 1, 2010 - 4:37pm Addthis The Department of Energy has closed its investigation into the energy efficiency of Arcelik's Blomberg refrigerator-freezer model # BRFB1450. The Department opened this investigation based on a complaint. DOE subpoenaed information from Arcelik, reviewed Arcelik's response, and performed its own testing of this model. Based on our investigation and test results, DOE has determined this model to be compliant with federal energy conservation standards. Notice of Compliance Determination Addthis Related Articles DOE Opens Three Investigations into Alleged Refrigerator Efficiency Violations DOE Closes Investigation of Whirlpool's Maytag Refrigerator

135

DOE Closes Investigation of Whirlpool's Maytag Refrigerator | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Closes Investigation of Whirlpool's Maytag Refrigerator Closes Investigation of Whirlpool's Maytag Refrigerator DOE Closes Investigation of Whirlpool's Maytag Refrigerator July 8, 2010 - 3:12pm Addthis The Department of Energy has closed its investigation into the energy efficiency of Whirlpool's Maytag refrigerator-freezer model "MSD2578VE." The Department opened this investigation and requested testing data from Whirlpool based on a complaint (April 12, 2010, "DOE Opens Three Investigations into Alleged Refrigerator Efficiency Violations"). After reviewing the data and testing this model, the Department has found the model to be compliant with the applicable efficiency standards and has closed the investigation. The Department takes credible allegations seriously and will continue to initiate investigations on products that are

136

Experimental investigation of aerosol deposition on slot-and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Experimental investigation of aerosol deposition on slot-and joint-type leaks Title Experimental investigation of aerosol deposition on slot-and joint-type leaks Publication Type...

137

Investigation of particle isolation in Li-ion battery electrodes...  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of particle isolation in Li-ion battery electrodes using 7Li NMR spectroscopy Title Investigation of particle isolation in Li-ion battery electrodes using 7Li NMR...

138

An Investigation of Turbulence Generation Mechanisms above Deep Convection  

Science Conference Proceedings (OSTI)

An investigation of the generation of turbulence above deep convection is presented. This investigation is motivated by an encounter between a commercial passenger aircraft and severe turbulence above a developing thunderstorm near Dickinson, ...

Todd P. Lane; Robert D. Sharman; Terry L. Clark; Hsiao-Ming Hsu

2003-05-01T23:59:59.000Z

139

Accident Investigation and Materials Failure Analysis at the ...  

Science Conference Proceedings (OSTI)

Both are independent federal agencies charged with investigating transportation accidents in all modes, including aviation, railroad, highway, marine, pipeline,...

140

Electrical Resistance Investigation of Cotton Fabrics After Treating ...  

Science Conference Proceedings (OSTI)

Presentation Title, Electrical Resistance Investigation of Cotton Fabrics After ... the Piezodielectric Effect of Carbon Fiber Sulphoaluminate Cement Composites.

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Technical Root Cause Investigation of Localized Corrosion in Wet ...  

Science Conference Proceedings (OSTI)

Evaluating Design Elements in Corrosion Failure Investigations ... Experimental Technique to Conduct Thermal Shock Test on Refractories Using Steel Blocks.

142

An Examination of Failure Modes and Investigation Techniques in ...  

Science Conference Proceedings (OSTI)

Accident Investigation and Materials Failure Analysis at the Transportation Safety ... Experimental Technique to Conduct Thermal Shock Test on Refractories...

143

Investigation of Solutions to Reduce Fluoride Emissions from Anode ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2011 TMS Annual Meeting & Exhibition. Symposium , Aluminum Reduction Technology. Presentation Title, Investigation of...

144

Thermodynamic investigations and modeling of copper and iron ...  

Science Conference Proceedings (OSTI)

Experimentally determined thermochemical and thermodynamic data are key input data for the thermodynamic optimization. For the experimental investigations,...

145

An Investigation of Wire Breaks Created during Copper Wire ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Failure Analysis and Prevention. Presentation Title, An Investigation of Wire...

146

Preliminary Investigation into the Effect of Green Compact ...  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Preliminary Investigation into the Effect of Green Compact Microstructural Design on the Density of Combustion Synthesized Aluminide...

147

DOE O 225.1B, Accident Investigations  

Directives, Delegations, and Requirements

This Order prescribes organizational responsibilities, authorities, and requirements for conducting investigations of certain accidents occurring at DOE sites, ...

2011-03-04T23:59:59.000Z

148

Investigation of Residential Central Air Conditioning Load Shapes in  

E-Print Network (OSTI)

LBNL-52235 Investigation of Residential Central Air Conditioning Load Shapes in NEMS Kristina Laboratory is an equal opportunity employer. #12;#12;LBNL-52235 Investigation of Residential Central Air;#12;Investigation of Residential Central Air Conditioning Load Shapes in NEMS i Table of Contents Acronyms

149

LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Conducts Groundwater and Soil Investigation at Riverton, Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood October 16, 2012 - 10:50am Addthis LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood LM Conducts Groundwater and Soil Investigation at Riverton, Wyoming, in Response to 2010 Flood What does this project do? Goal 1. Protect human health and the environment A team representing two Federal agencies-U.S. Department of Energy (DOE) Office of Legacy Management and U.S. Geological Survey-is evaluating

150

Investigation Report: I04RL003 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigation Report: I04RL003 Investigation Report: I04RL003 Investigation Report: I04RL003 June 1, 2004 Investigation of Allegations Involving Occupational Medical Services and Tank Farm Vapor Exposures at the Hanford Site On February 24, 2004, you requested that the Office of Inspector General (OIG) conduct an investigation of activities associated with the provision of occupational medical services to U.S. Department of Energy and contractor employees at the Hanford Site. In response to your request, OIG Special Agents initiated and investigation into specific events and incidents involving alleged criminal misconduct. Investigation Report: I04RL003 More Documents & Publications Gregory H. Friedman: Before the United States Senate Committee on Energy and Natural Resources Audit Report: OAS-L-04-14

151

George Gollin, Investigation of TESLA Damping Ring Kickers using the A0 Photoinjector Beam 1 Investigation of TESLA Damping  

E-Print Network (OSTI)

George Gollin, Investigation of TESLA Damping Ring Kickers using the A0 Photoinjector Beam 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . .. .. . . . .. . . . .. . . . . . . .. .. . . . . . . IPhysicsP Illinois Investigation of TESLA Damping Ring Kickers using the A0 Photoinjector Beam George, Investigation of TESLA Damping Ring Kickers using the A0 Photoinjector Beam 2

Gollin, George

152

Remedial investigation report for J-Field, Aberdeen Proving Ground, Maryland. Volume 1: Remedial investigation results  

Science Conference Proceedings (OSTI)

This report presents the results of the remedial investigation (RI) conducted at J-Field in the Edgewood Area of Aberdeen Proving Ground (APG), a U.S. Army installation located in Harford County, Maryland. Since 1917, activities in the Edgewood Area have included the development, manufacture, and testing of chemical agents and munitions and the subsequent destruction of these materials at J-Field by open burning and open detonation. These activities have raised concerns about environmental contamination at J-Field. This RI was conducted by the Environmental Conservation and Restoration Division, Directorate of Safety, Health and Environmental Division of APG, pursuant to requirements outlined under the Comprehensive Environmental Response, Compensation, and Liability Act, as amended (CERCLA). The RI was accomplished according to the procedures developed by the U.S. Environmental Protection Agency (EPA 1988). The RI provides a comprehensive evaluation of the site conditions, nature of contaminants present, extent of contamination, potential release mechanisms and migration pathways, affected populations, and risks to human health and the environment. This information will be used as the basis for the design and implementation of remedial actions to be performed during the remedial action phase, which will follow the feasibility study (FS) for J-Field.

Yuen, C. R.; Martino, L. E.; Biang, R. P.; Chang, Y. S.; Dolak, D.; Van Lonkhuyzen, R. A.; Patton, T. L.; Prasad, S.; Quinn, J.; Rosenblatt, D. H.; Vercellone, J.; Wang, Y. Y.

2000-03-14T23:59:59.000Z

153

DOE Closes Investigation of Whirlpool's Maytag Refrigerator | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Whirlpool's Maytag Refrigerator of Whirlpool's Maytag Refrigerator DOE Closes Investigation of Whirlpool's Maytag Refrigerator July 8, 2010 - 3:12pm Addthis The Department of Energy has closed its investigation into the energy efficiency of Whirlpool's Maytag refrigerator-freezer model "MSD2578VE." The Department opened this investigation and requested testing data from Whirlpool based on a complaint (April 12, 2010, "DOE Opens Three Investigations into Alleged Refrigerator Efficiency Violations"). After reviewing the data and testing this model, the Department has found the model to be compliant with the applicable efficiency standards and has closed the investigation. The Department takes credible allegations seriously and will continue to initiate investigations on products that are

154

Investigation of a Hybrid Cutting Tool Design for Shearing ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of a Hybrid Cutting Tool Design for Shearing Operations of ... Challenges in Applying Diamond Coatings to Carbide Twist Drills.

155

A New Apparatus For Long-Term Petrophysical Investigations On...  

Open Energy Info (EERE)

system allows investigations with highly saline formation fluids. Rock permeability, electrical conductivity as well as compressional- and shear-wave velocities can be...

156

Market fit, market orientation, and business performance : an empirical investigation.  

E-Print Network (OSTI)

??This thesis investigated the congruence of an organisation to its intended target markets. It was hypothesised that the internal activities of an organisation are, potentially, (more)

Taghian, Mehdi.

2004-01-01T23:59:59.000Z

157

The investigation of the market disequilibrium in the stock market.  

E-Print Network (OSTI)

??This thesis investigated stock market disequilibrium focusing on two topics: the impact of multiple market makers on the market disequilibrium at the market microstructure level, (more)

Park, Jin Suk

2013-01-01T23:59:59.000Z

158

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California.  

Open Energy Info (EERE)

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Details Activities (2) Areas (1) Regions (0) Abstract: This investigation included: review of existing geologic, geophysical, and hydrologic information; field examination of geologic rock units and springs and other features of hydrologic significance and sampling of waters for chemical analysis; determination of the local Coso Hot Springs and regional groundwater hydrology, including consideration of recharge, discharge, movement, and water quality; and determination of the

159

Investigation on Modified Humic Substances Based Binders for Iron ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation on Modified Humic Substances Based Binders for Iron ... An Electron Microscopy Study of Nanoscale Surface and Sub-Surface...

160

A Numerical Investigation of a Thermodielectric Power Generation System .  

E-Print Network (OSTI)

??The performance of a novel micro-thermodielectric power generation device (MTDPG) was investigated in order to determine if thermodielectric power generation can compete with current portable (more)

Sklar, Akiva A.

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

The Flip Side: An Investigation into the Depersonalization of Communication.  

E-Print Network (OSTI)

??The author investigated the depersonalization of student communication in grades six through twelve. The Flip Side Survey was run to focus in on whether or (more)

Myer, Eileen S

2010-01-01T23:59:59.000Z

162

Before the House Subcommittee on Investigations and Oversight...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and Oversight Committee on Science, Space and Technology Before the House Subcommittee on Investigations and Oversight Committee on Science, Space and Technology Before the House...

163

Microstructure Investigation of Mg-10Gd-1La Containing Alloys ...  

Science Conference Proceedings (OSTI)

Presentation Title, Microstructure Investigation of Mg-10Gd-1La Containing Alloys Subjected to Fatigue Deformation. Author(s), Chamini Lakshi Mendis, Petra...

164

Calorimetric Investigation of the LithiumManganeseOxygen ...  

Science Conference Proceedings (OSTI)

Presentation Title, Calorimetric Investigation of the LithiumManganeseOxygen Cathode Material System for Lithium Ion Batteries. Author(s), Damian M. Cupid,...

165

Making Controlled Experimentation More Informative in Inquiry Investigations  

E-Print Network (OSTI)

learners to conduct virtual investigations about complexconduct their experiments, the software logs the investigationinvestigations and how students use dynamic visualization tools to conduct

McElhaney, Kevin

2010-01-01T23:59:59.000Z

166

Internet- versus Telephone-based Local Outbreak Investigations  

E-Print Network (OSTI)

We compared 5 locally conducted, Internet-based outbreak investigations with 5 telephone-based investigations. Internet-based surveys required less completion time, and response rates were similar for both investigation methods. Participant satisfaction with Internet-based surveys was high. Although the Internet has been increasingly used in epidemiologic research, its use for investigation of infectious disease outbreaks has been less frequently described. Most reports of Internet-based outbreak investigations have described large, single outbreaks conducted by national or state public health agencies. Examples of reported Internet-based outbreak investigations include a communitywide norovirus outbreak in Finland, a communitywide Cryptosporidium outbreak in Kansas, a multistate Salmonella outbreak, and a conjunctivitis outbreak at a university (14). These reports noted several advantages of Internet use, including reductions in resource use, workload, and time required for survey completion and data entry (14). However, these advantages are not generally quantified in outbreak reports. Moreover, Internetbased outbreak investigations are seldom reported from the local health department level, where resources are often constrained compared with those of state and national agencies. We offer an analysis of several small Internetbased outbreak investigations conducted at the local level. We describe response rates to Internet-based surveys with and without telephone follow-up, the time needed to complete Internet-based outbreak surveys in comparison with traditional telephone surveys, participant satisfaction with Internet-based surveys, and differences in Internet-based outbreak investigations based on the respondents setting: professional versus household.

Tista S. Ghosh; Jennifer L. Patnaik; Nisha B. Alden; Richard L. Vogt

2006-01-01T23:59:59.000Z

167

A software framework for simulation-based scientific investigations .  

E-Print Network (OSTI)

??This thesis provides a design and development of a software architecture and programming framework that enables domain-oriented scientific investigations to be more easily developed and (more)

Salman, Adnan M., 1965-

2010-01-01T23:59:59.000Z

168

Laboratory Investigation of an Ultralow NOx  

1115 Proceedings of the Combustion Institute, Volume 29, 2002/pp. 11151121 LABORATORY INVESTIGATION OF AN ULTRALOW NO x PREMIXED COMBUSTION CONCEPT ...

169

Investigation on the Correlation of Sulfur, Chlorine, Silicon and the ...  

Science Conference Proceedings (OSTI)

Seven coal samples from coal basins of China, were investigated to identify the ... The results indicated that the most of mercury existed in coal as bound-state...

170

An Integrated Mapping And Remote Sensing Investigation Of The...  

Open Energy Info (EERE)

And Remote Sensing Investigation Of The Structural Control For Fumarole Location In The Eburru Volcanic Complex, Kenya Rift Jump to: navigation, search GEOTHERMAL ENERGYGeothermal...

171

An investigation of the Dixie Valley geothermal field, Nevada...  

Open Energy Info (EERE)

2007 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for An investigation of the Dixie Valley geothermal field, Nevada, using...

172

NBS-GCR-79-188 AN INVESTIGATION OF FIRE ...  

Science Conference Proceedings (OSTI)

Page 1. NBS-GCR-79-188 AN INVESTIGATION OF FIRE IMPINGEMENT ON A HORIZONTAL CEILING HZ You AND GM FAETH OCTOBER 1978 ...

2009-01-08T23:59:59.000Z

173

Geothermal investigations in Idaho. Part 1. Geochemistry and...  

Open Energy Info (EERE)

in Idaho. Part 1. Geochemistry and geologic setting of selected thermal waters Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal investigations in...

174

The investigation of anomalous magnetization in the Raft River...  

Open Energy Info (EERE)

anomalous magnetization in the Raft River valley, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: The investigation of anomalous...

175

Investigating science teachers' beliefs about science and science teaching.  

E-Print Network (OSTI)

??The purposes of this quantitative, descriptive study were to investigate Saudi science teachers' beliefs about science and science teaching, and to determine how do Saudi (more)

AL-Abdulkareem, Saleh A. M., 1965-

2004-01-01T23:59:59.000Z

176

Investigation of SGP Atmospheric Moisture Budget for CLASIC ?...  

NLE Websites -- All DOE Office Websites (Extended Search)

of a recently completed investigation of the moisture budget over the Midwestern Corn Belt (Zangvil et al. 2001, 2004) This study will be expanded with * Extended seasons...

177

Heat Exchangers Fouling and Corrosion-A Detailed Investigation  

Science Conference Proceedings (OSTI)

Presentation Title, Aluminum Smelter Waste Heat Recovery Plant (Heat Exchangers Fouling and Corrosion-A Detailed Investigation). Author(s), Hadi Fanisalek,...

178

Investigation of Powder Metallurgy Titanium Matrix Composites by ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of Powder Metallurgy Titanium Matrix Composites by Planetary Ball-milling of Ti Powder Dispersed with Vapour Grown Carbon...

179

Before House Subcommittee on Oversight and Investigations - Committee...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and Commerce Before House Subcommittee on Oversight and Investigations - Committee on Energy and Commerce By: Gil Vega, Associate Chief Information Officer for Cybersecurity...

180

Nuclear Magnetism and Superconductivity: Investigations on Lithium and Rhodium.  

E-Print Network (OSTI)

??This thesis describes low temperature experiments on lithium. The experiments concentrate on investigating low temperature phase transitions of two subsystems in this metal: its nuclear (more)

Juntunen, Kirsi

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Nuclear magnetism and superconductivity : investigations on lithium and rhodium.  

E-Print Network (OSTI)

??This thesis describes low temperature experiments on lithium. The experiments concentrate on investigating low temperature phase transitions of two subsystems in this metal: its nuclear (more)

Juntunen, Kirsi

2005-01-01T23:59:59.000Z

182

Microstructural Investigation of D2 Tool Steel during Rapid ...  

Science Conference Proceedings (OSTI)

Preliminary Investigations in Current-Activated Tip-Based Sintering (CATS): Modeling and Experiments Process Simulation of Cold Pressing and Sintering of...

183

Investigation of 5 MOL% YSZ Electrolyte for SOFC  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of 5 MOL% YSZ Electrolyte for SOFC. Author(s), Nilufer Evcimen, Ahmet Ekerim. On-Site Speaker (Planned), Nilufer Evcimen.

184

Experimental Investigation of Local Displacement Speeds of Wrinkled...  

NLE Websites -- All DOE Office Websites (Extended Search)

simulation models and flame stretch theory. Lean and rich methane-air, and lean propane-air flames were investigated to assess stable and unstable preferential diffusion...

185

Investigation of Dithiolenes for Propylene/Propane Membrane Separations .  

E-Print Network (OSTI)

??Polyimide membranes containing nickel dithiolenes were investigated for the separation of propylene and propane. Permeation and sorption experiments were conducted as well thermal property analyses. (more)

Sejour, Hensley

2007-01-01T23:59:59.000Z

186

A Preliminary Resistivity Investigation (Ves) Of The Langada...  

Open Energy Info (EERE)

Resistivity Investigation (Ves) Of The Langada Hot Springs Area In Northern Greece Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A...

187

Microstructural Investigation of Nano-Calcium Phosphates Doped ...  

Science Conference Proceedings (OSTI)

Presentation Title, Microstructural Investigation of Nano-Calcium Phosphates Doped with Fluoride Ions. Author(s), Aydin Tahmasebifar, Zafer Evis, Serap...

188

Petrology, geochronology, and chemical evolution of the Twin Peaks Rhyolite Domes, Utah  

DOE Green Energy (OSTI)

Two distinct sequences of silicic volcanism at the Twin Peaks volcanic field, Millard County, Utah, spanned periods from 2.74 +- .10 to 2.54 +- .09 m.y. and 2.43 +- .08 to 2.35 +- .08 m.y., and produced a total exposed volume of 4 km/sup 3/ of rhyolites and volcanoclastics. Wet chemical, x-ray fluorescence, microprobe, atomic absorption, and neutron activation methods have been employed to obtain a wide range of chemical data on whole rock and mineral separate samples. Calculated distribution coefficients are comparable to previously published values for high silica rocks. Each sequence is characterized by a systematic trend from < 72% to > 76% SiO/sub 2/. Accompanying this increase in SiO/sub 2/ over time are increases in Rb, Y, Sb, Cs, U, Th, HREE and decreases in Mg, Co, Fe, Sr, Ba, and LREE. Decreases in temperature and fO/sub 2/ and an increase in fH/sub 2/O are also indicated. These trends are very similar to gradients observed in ash flow tuffs erupted instantaneously from compositionally zoned magma chambers. Chemical evolution at Twin Peaks was dominated by the same mechanism of liquid state differentiation which produce the compositional zonation in larger silicic magma chambers.

Crecraft, H.R.; Nash, W.P.; Evans, S.H. Jr.

1980-05-01T23:59:59.000Z

189

Sequence Stratigraphy and Detrital Zircon Geochronology of the Swan Peak Quartzite, Southeastern Idaho  

E-Print Network (OSTI)

The supermature Middle-Late Ordovician Swan Peak quartz arenite was deposited on the western Laurentia passive margin and is very fine to fine grained, well-rounded, well-sorted, and silica-cemented. Laurentia was positioned over the equator during the Middle-Late Ordovician, suggesting that basement rock along the Transcontinental Arch was intensely eroded in a humid climate to produce this and other coeval quartz arenites. To determine provenance for the Swan Peak Quartzite, zircon grains were analyzed using LA-ICP-MS and the results were constrained within a sequence stratigraphic framework. Depositional environments of the Swan Peak Quartzite record an offshore-to-onshore transition with five facies (A-E). Facies A only occurs at the base of the Bear Lake section and may record an incised valley or localized embayment. It is the deepest water facies in the succession containing shale and quartz arenite interbeds. Facies B through E are interpreted as lower, middle, upper shoreface/foreshore depositional environments, respectively, based on primary sedimentary structures and bioturbation. Detrital zircon age spectra of the Swan Peak Quartzite have four distinct populations: the two main populations are at 1.8 - 2.0 Ga (Paleoproterozoic) and between 2.5 - 3.0 Ga (Archean), with a smaller, but persistent, population at 2.0 - 2.1 Ga, and a very minor 0.8 - 1.2 Ga (Mesoproterozoic) population occurring mainly in the tops of the measured sections. The base of each section has a larger Archean peak whereas the top of each section is predominantly Paleoproterozoic grains. Zircon data have overlap and similarity values ranging between 0.531 - 0.771 and 0.506 - 0.881, respectively, which indicates zircon age spectra of the Swan Peak Quartzite is similar to other Cordilleran Ordovician quartzites and that recycling of heterogeneous underlying sedimentary rocks was minimal. The Wyoming Craton (2.5 - 2.8 Ga) and the Trans-Hudson Orogen (1.8 - 2.0 Ga) provinces near the paleoequator likely provided the majority of zircons in the Swan Peak Quartzite. The source for the 2.0 - 2.1 Ga grains is currently unknown and the 0.8 - 1.2 Ga grains are interpreted to reflect Mesoproterozoic Laurentian tectonism. Sediment input varied in response to sea level fluctuations. Longshore transport was likely an important process in redistributing grains along the coastline during later deposition of the Swan Peak Quartzite.

Wulf, Tracy David

2011-12-01T23:59:59.000Z

190

Application of deuteron-deuteron (d-d) fusion neutrons to 40 ar/39/ar geochronology  

E-Print Network (OSTI)

development of high-?ux DD fusion reactors is a worthy goalfusion reaction 2 H(d,n) 3 He. A new generation of DD reactors

Renne, P.; Knight, K.B.; Nomade, S.; Leung, K.-N.; Lou, T.P.

2005-01-01T23:59:59.000Z

191

Ar geochronology and structural data from the giant Okavango and related mac dyke swarms,  

E-Print Network (OSTI)

; Jung et al., 2003). · Les séries sédimentaires détritiques et carbonatées du Karoo (faisant partie des'horizontal sur les séries plissées du Damara. Les sédiments du Karoo affleurent tout autour des laves du Goboboseb, et sont en dessous. Au-dessus des terrains Karoo, on trouve une couverture cénozoïque et la

Dyment, Jérôme

192

InvestigationOrganizer: The development and testing of a Web-based tool to support mishap investigations  

E-Print Network (OSTI)

ABSTRACT 1 InvestigationOrganizer (IO) is a collaborative web-based system designed to support the conduct of mishap investigations. IO provides a common repository for a wide range of mishap related information, and allows investigators to make explicit, shared, and meaningful links between evidence, causal models, findings and recommendations. It integrates the functionality of a database, a common document repository, a semantic knowledge network, a rule-based inference engine, and causal modeling and visualization. Thus far, IO has been used to support four mishap investigations within NASA, ranging from a small property damage case to the loss of the Space Shuttle Columbia. This paper describes how the functionality of IO supports mishap investigations and the lessons learned from the experience of supporting two of the NASA mishap investigations: the Columbia

Robert E. Carvalho; James Williams; Ian Sturken; Richard Keller

2005-01-01T23:59:59.000Z

193

An empirical investigation of virtual Interaction in supporting learning  

Science Conference Proceedings (OSTI)

This research investigates "virtual interaction," a special type of interaction between a learner and a rich media representation of an instructor. Guided by the Technology Mediated Learning (TML) research framework, the research investigates the impacts ... Keywords: e-learning, question answering, technology mediated learning (TML), virtual interaction

Jinwei Cao; Janna M. Crews; Ming Lin; Judee K. Burgoon; Jay F. Nunamaker, Jr.

2008-07-01T23:59:59.000Z

194

An Empirical Investigation of the Determinants of Asymmetric Pricing  

E-Print Network (OSTI)

and worldwide slowdown of production. A primary concern, given the lengthy downward trend, is that the priceAn Empirical Investigation of the Determinants of Asymmetric Pricing Marc Remer August 2, 2010 Abstract This paper empirically investigates the cause of asymmetric pricing: retail prices responding

Niebur, Ernst

195

Investigation of the Brazil Current front variability from altimeter data  

E-Print Network (OSTI)

Investigation of the Brazil Current front variability from altimeter data Gustavo J. Goni Atlantic, Brazil Abstract. The southwestern Atlantic Ocean is characterized by the confluence of the Brazil in conjunction with a two-layer dynamical ocean scheme to monitor the Brazil Current front and to investigate its

196

DOE Closes Investigation into Energy Efficiency of Viking Refrigerator |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Closes Investigation into Energy Efficiency of Viking Closes Investigation into Energy Efficiency of Viking Refrigerator DOE Closes Investigation into Energy Efficiency of Viking Refrigerator November 9, 2010 - 7:30pm Addthis The Department of Energy has closed its investigation into the energy efficiency of Viking Range Corporation's refrigerator-freezer model VCSB542. The Department initiated this investigation in response to allegations that the model failed to meet federal energy efficiency standards. After reviewing data provided by Viking for this model, the Department issued a testing demand on June 16, 2010 and initially tested four units, one of which was defective and replaced by a fifth unit. The test results showed that two Viking units failed the federal energy standard for maximum energy use, while two passed. Because of the wide variation in the

197

An investigation of the Dixie Valley geothermal field, Nevada, using  

Open Energy Info (EERE)

investigation of the Dixie Valley geothermal field, Nevada, using investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Author Marshall J. Reed Conference Proceedings, 32nd Workshop on Geothermal Reservoir Engineering; Stanford University; 2007 Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Citation Marshall J. Reed. 2007. An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests. In:

198

Property:Geothermal/OtherPrincipalInvestigator | Open Energy Information  

Open Energy Info (EERE)

OtherPrincipalInvestigator OtherPrincipalInvestigator Jump to: navigation, search Property Name Geothermal/OtherPrincipalInvestigator Property Type String Description Other Principal Investigators Subproperties This property has the following 2 subproperties: A A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project D Development of Chemical Model to Predict the Interactions between Supercritical CO2 and Fluid, Rocks in EGS Reservoirs Geothermal Project Pages using the property "Geothermal/OtherPrincipalInvestigator" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + John Louie, University of Nevada and Lisa Shevenell, University of Nevada +

199

Surveillance Guide - OPS 9.6 Investigation of Abnormal Events  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

INVESTIGATION OF ABNORMAL EVENTS INVESTIGATION OF ABNORMAL EVENTS 1.0 Objective The objective of this surveillance is to verify that contractor personnel are effectively investigating abnormal events. The activities included in this surveillance provide a basis for determining whether the contractor has implemented a thorough review process to identify, investigate, and resolve abnormal events. The surveillance also provides a basis for ensuring that applicable DOE requirements are implemented. 2.0 References 2.1 DOE 5480.19, Conduct of Operations Requirements for DOE Facilities 2.2 DOE-STD-1045-93, Guide To Good Practices for Notifications and Investigations of Abnormal Events 2.3 DOE 232.1A, Occurrence Reporting and Processing of Operations Information 3.0 Requirements Implemented

200

Energy Department Closes Buy American Investigation into Lighting Sales |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Closes Buy American Investigation into Lighting Energy Department Closes Buy American Investigation into Lighting Sales Energy Department Closes Buy American Investigation into Lighting Sales September 10, 2010 - 4:56pm Addthis Today, the Department of Energy formally closed its investigation into whether sales to recipients of the Department's Energy Efficiency Community Block Grants by two California companies, US Lighting Tech and American Induction Technologies, Inc., complied with the Buy American provisions of the American Recovery and Reinvestment Act (ARRA). As part of its investigation, the Department engaged a lighting industry expert who reviewed data submitted by the two companies and made site visits to inspect the companies' manufacturing processes. The Department has concluded that the sales were consistent with ARRA's Buy American

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Accident Investigation at the Idaho National Laboratory Engineering  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Accident Investigation at the Idaho National Laboratory Engineering Accident Investigation at the Idaho National Laboratory Engineering Demonstration Facility, February 2013 Accident Investigation at the Idaho National Laboratory Engineering Demonstration Facility, February 2013 On Monday, February 12, 2013, a principal investigator at the Idaho National Laboratory (INL) Engineering Demonstration Facility (IEDF) was testing the system configuration of experimental process involving liquid sodium carbonate. An unanticipated event occurred that resulted in the ejection of the 900° C liquid sodium carbonate from the system. The ejected liquid came into contact with the principal investigator and caused multiple second and third degree burn injuries to approximately 10 percent of his body. The Office of Health, Safety and Security (HSS) Site Lead for

202

An Audio-Magnetotelluric Investigation In Terceira Island (Azores) | Open  

Open Energy Info (EERE)

Audio-Magnetotelluric Investigation In Terceira Island (Azores) Audio-Magnetotelluric Investigation In Terceira Island (Azores) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Audio-Magnetotelluric Investigation In Terceira Island (Azores) Details Activities (0) Areas (0) Regions (0) Abstract: Ten audio-magnetotelluric soundings have been carried out along a profile crossing the Serra do Cume caldera in the eastern part of the Terceira Island (Azores). The main objectives of this investigation were to detect geoelectrical features related with tectonic structures and to characterize regional hydrological and hydrothermal aspects mainly those related to geothermal fluid dynamics. Three-dimensional numerical investigation showed that the data acquired at periods shorter than 1 s are not significantly affected by ocean effect. The data was analysed using the

203

John C. Layton: Before the Subcommittee on Oversight and Investigations  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Subcommittee on Oversight and the Subcommittee on Oversight and Investigations Commerce Committee U.S. House of Representatives John C. Layton: Before the Subcommittee on Oversight and Investigations Commerce Committee U.S. House of Representatives October 9, 1997 Before the Subcommittee on Oversight and Investigations Commerce Committee U.S. House of Representatives Statement of John C. Layton, Inspector General Department of Energy Testify on the DOE management of its laboratories. Statement of John C. Layton Inspector General Department of Energy Before the Subcommittee on Oversight and Investigations Commerce Committee U.S. House of Representatives, Statement of John C. Layton Inspector General Department of Energy Before the Subcommittee on Oversight and Investigations Commerce Committee U.S.

204

Independent Oversight Investigation, Hanford Site - April 2004 | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigation, Hanford Site - April 2004 Investigation, Hanford Site - April 2004 Independent Oversight Investigation, Hanford Site - April 2004 April 2004 Investigation of Worker Vapor Exposure and Occupational Medicine Program Allegations at the Hanford Site At the direction of the Secretary of Energy, the Office of Independent Oversight and Performance Assurance (OA) conducted an investigation of selected aspects of worker safety and health systems at the U.S. Department of Energy (DOE) Hanford Site in February-April 2004. In February 2004, the Secretary of Energy directed OA to evaluate recent allegations of deficient safety and medical practices and to assess past practices and current operations to determine whether additional actions are needed to ensure a safe work environment at the Hanford Site.

205

Energy Department Closes Buy American Investigation into Lighting Sales |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Closes Buy American Investigation into Lighting Energy Department Closes Buy American Investigation into Lighting Sales Energy Department Closes Buy American Investigation into Lighting Sales September 10, 2010 - 4:56pm Addthis Today, the Department of Energy formally closed its investigation into whether sales to recipients of the Department's Energy Efficiency Community Block Grants by two California companies, US Lighting Tech and American Induction Technologies, Inc., complied with the Buy American provisions of the American Recovery and Reinvestment Act (ARRA). As part of its investigation, the Department engaged a lighting industry expert who reviewed data submitted by the two companies and made site visits to inspect the companies' manufacturing processes. The Department has concluded that the sales were consistent with ARRA's Buy American

206

The investigation of anomalous magnetization in the Raft River valley,  

Open Energy Info (EERE)

investigation of anomalous magnetization in the Raft River valley, investigation of anomalous magnetization in the Raft River valley, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: The investigation of anomalous magnetization in the Raft River valley, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Cassia County Idaho; clastic sediments; economic geology; exploration; geophysical methods; geophysical surveys; geothermal energy; gravel; ground methods; Idaho; isothermal remanent magnetization; magnetic anomalies; magnetic methods; magnetic properties; magnetic susceptibility; magnetization; paleomagnetism; Raft River basin; remanent magnetization; sediments; surveys; United States Author(s): Anderson, L.A.; Mabey, D.R. Published: Abstracts - Society of Exploration Geophysicists International

207

Before the House Subcommittee on Investigations & Oversight - Committee on  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

& Oversight - & Oversight - Committee on Science, Space, and Technology Before the House Subcommittee on Investigations & Oversight - Committee on Science, Space, and Technology Testimony of Kathleen Hogan, Deputy Assistant Secretary for Energy Efficiency Before the House Subcommittee on Investigations & Oversight - Committee on Science, Space, and Technology 5-8-12_Kathleen_Hogan_FT.pdf More Documents & Publications Before the House Subcommittee on Energy and Power and Subcommittee on Oversight and Investigations - Committee on Energy and Commerce Notice of proposed rulemaking, Energy Efficiency and Sustainable Design Standards for New Federal Buildings, 75 Fed. Reg. 29,933 (May 28, 2010) 2010 DOE Strategic Sustainability Performance Plan - Report to the White

208

Final Report Limited Soil Investigation of Project Chariot Test Holes  

Office of Legacy Management (LM)

Limited Soil Investigation of Project Limited Soil Investigation of Project Chariot Test Holes Cape Thompson, Alaska December 2010 Prepared for U.S. Department of Energy and U.S. Army Corps of Engineers, Alaska District Post Office Box 6898 Elmendorf AFB, Alaska 99506-6898 Contract W911KB-08-D-0003 Task Order 12, Mod 001 Prepared by Fairbanks Environmental Services 3538 International Street Fairbanks, Alaska 99701 (907) 452-1006 FES Project No. 5012-06 Final Report Limited Soil Investigation of Project Chariot Test Holes, Cape Thompson, Alaska Fairbanks Environmental Services 5012-06 TABLE OF CONTENTS Page Number EXECUTIVE SUMMARY 1.0 INTRODUCTION ................................................................................................... 1-1

209

Microsoft Word - S04816_InvestigationPlan.doc  

Office of Legacy Management (LM)

New Brunswick, New Jersey, Site New Brunswick, New Jersey, Site Investigation Plan to Identify Potential Radiological Contamination in a Sanitary Sewer December 2008 LMS/NBL/S04816 This page intentionally left blank New Brunswick, New Jersey, Site Investigation Plan to Identify Potential Radiological Contamination in a Sanitary Sewer December 2008 This page intentionally left blank U.S. Department of Energy Investigation Plan to Identify Contamination in a Sanitary Sewer December 2008 Doc. No. S0481600 Page i Contents 1.0 Background ......................................................................................................................... 1 2.0 Objectives of This Study.....................................................................................................

210

Summary of 1991--1992 misadministration event investigations  

Science Conference Proceedings (OSTI)

Investigation team composed of representatives of the Idaho National Engineering Laboratory (INEL), the US Nuclear Regulatory Commission (NRC), and subcontracts investigated and analyzed seven misadministration events selected by the NRC concerning medical radioisotopes. Each team was led by an INEL member and depending on the nature of the event, included three or more team members with appropriate expertise in radiation oncology, medical physics, nuclear medicine technology, risk analysis, and human factors. The investigations focused on causes of the event, consequences, mitigating actions, and corrective actions. The major findings are described in this report.

Ostrom, L.T.; Leahy, T.J.; Novack, S.D. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1994-03-01T23:59:59.000Z

211

Investigations of MACCS2 for LANL Dispersion Analysis  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigations of MACCS2 Investigations of MACCS2 Investigations of MACCS2 Investigations of MACCS2 for LANL Dispersion Analysis p y DOE Workshop Germantown, MD Raymond F. Sartor, Ph.D. Safety Basis Technical Services June 5-6, 2012 Safety Basis - Technical Services Los Alamos National Laboratory Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Basic Equation for Ground-Level Release Basic Equation for Ground-Level Release                                                

212

Agencies complete comprehensive investigation for radioactive and hazardous  

NLE Websites -- All DOE Office Websites (Extended Search)

Printer-friendly icon Printer-Friendly June 29, 2007 Agencies complete comprehensive investigation for radioactive and hazardous waste landfill; agree to extend document submittal milestone The U.S. Department of Energy (DOE), Idaho Department of Environmental Quality (IDEQ), and U.S. Environmental Protection Agency (EPA) have completed a CERCLA (Superfund) Remedial Investigation and Baseline Risk Assessment and Feasibility Study of a radioactive and hazardous waste landfill at the U.S. Department of Energy�s Idaho Radioactive Waste Management Complex (RWMC). The results of these investigations are found in two documents: the Remedial Investigation and Baseline Risk Assessment for Operable Unit 7-13/-14 and the Feasibility Study for Operable Unit 7-13/-14. Both documents are available in the Administrative Record at http://ar.inel.gov/. The documents are also available at the INL Technical Library in Idaho Falls and Boise State University�s Albertsons Library.

213

DOE Opens Investigation into Alleged Lighting Efficiency Violations |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Opens Investigation into Alleged Lighting Efficiency Violations Opens Investigation into Alleged Lighting Efficiency Violations DOE Opens Investigation into Alleged Lighting Efficiency Violations March 24, 2010 - 4:36pm Addthis Today, the U.S. Department of Energy announced it had issued subpoenas to three companies who were identified as selling certain torchiere lamps that failed to meet federal energy efficiency standards. Under the subpoenas, Target Corporation, Adesso, Inc. and Habitex Corporation are required to submit detailed information about the design of these products and how the companies marketed and sold them in the U.S. These investigations are part of the ongoing efforts at the Department of Energy and across the Obama Administration to strengthen and enforce federal energy efficiency standards that will save money for consumers and

214

Enforcement Guidance Supplement 98-01: Duration of Investigations Conducted  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Duration of Investigations Duration of Investigations Conducted Pursuant to 10 CFR 820.21; Purpose of Transcript Requirements Set Forth in 10 CFR 820.10 (d) Enforcement Guidance Supplement 98-01: Duration of Investigations Conducted Pursuant to 10 CFR 820.21; Purpose of Transcript Requirements Set Forth in 10 CFR 820.10 (d) The DOE Enforcement Handbook (1087-95) provides the Office of Enforcement and lnvestigation with the opportunity to issue interim clarifying guidance occasionally with respect to the processes to be used in this office (see Section 1.3- Interim Enforcement Guidance). In particular, it is important to assist contractors and others on the relationships between the requirements of Part 820 and the Enforcement Policy, 10 CFR 820, Appendix A. Enforcement Guidance Supplement 98-01: Duration of Investigations Conducted

215

Enforcement Guidance Supplement 98-01:Duration of Investigations Conducted  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Enforcement Guidance Supplement 98-01:Duration of Investigations Enforcement Guidance Supplement 98-01:Duration of Investigations Conducted Pursuant to 10 CFR 820.21; Purpose of Transcript Requirements Set Forth in 10 CFR 820.10 (d) Enforcement Guidance Supplement 98-01:Duration of Investigations Conducted Pursuant to 10 CFR 820.21; Purpose of Transcript Requirements Set Forth in 10 CFR 820.10 (d) The DOE Enforcement Handbook (1087-95) provides the Office of Enforcement and Investigation with the opportunity to issue interim clarifying guidance occasionally with respect to the processes to be used in this office (see Section 1.3- Interim Enforcement Guidance). In particular, it is important to assist contractors and others on the relationships between the requirements of Part 820 and the Enforcement Policy, 10 CFR 820, Appendix

216

Department of Energy Opens Appliance Standards Investigation for Certain  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Opens Appliance Standards Investigation for Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps March 26, 2010 - 6:55pm Addthis WASHINGTON, DC - The U.S. Department of Energy announced today that it has opened an investigation to determine whether certain air conditioners and heat pump products manufactured by Air Con International comply with federal energy efficiency standards. The subpoena issued on Wednesday requires Air Con to submit detailed information about the energy consumption of its products and how Air Con marketed and sold them in the U.S. This action follows similar subpoenas issued earlier in the week for

217

An Investigation of the Equatorial OrographicDynamic Mechanism  

Science Conference Proceedings (OSTI)

A barotropic model over an equatorial beta-plane is used to investigate the response when a uniform zonal current crosses an isolated hypothetical mountain centered at the equator. The bounded derivative initialization method is applied to ...

Fredrick H. M. Semazzi

1985-01-01T23:59:59.000Z

218

An Investigation of Instantaneous Diffusion and Concentration Fluctuations  

Science Conference Proceedings (OSTI)

Instantaneous plume behavior is investigated via experimental and modeling results from a recent field campaign. The data consist of wind velocity and concentration measurements collected 700 m from a point source of sulfur hexafluoride during ...

Holly Peterson; Brian Lamb

1995-12-01T23:59:59.000Z

219

Department of Energy Opens Investigation into Alleged Lighting Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Opens Investigation into Alleged Lighting Opens Investigation into Alleged Lighting Efficiency Violations Department of Energy Opens Investigation into Alleged Lighting Efficiency Violations March 24, 2010 - 12:00am Addthis WASHINGTON, DC - Today, the U.S. Department of Energy announced it had issued subpoenas to three companies who were identified as selling certain torchiere lamps that failed to meet federal energy efficiency standards. Under the subpoenas, Target Corporation, Adesso, Inc. and Habitex Corporation are required to submit detailed information about the design of these products and how the companies marketed and sold them in the U.S. These investigations are part of the ongoing efforts at the Department of Energy and across the Obama Administration to strengthen and enforce federal energy efficiency standards that will save money for consumers and

220

Gregory H. Friedman: Before the Subcommittee on Investigations and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigations and Investigations and Oversight Committee on Science, Space, and Technology U.S. House of Representatives Gregory H. Friedman: Before the Subcommittee on Investigations and Oversight Committee on Science, Space, and Technology U.S. House of Representatives November 30, 2011 Before the Subcommittee on Investigations and Oversight Committee on Science, Space, and Technology U.S. House of Representatives Statement of Gregory H. Friedman, Inspector General, U.S. Department of Energy I appreciate the opportunity to testify today at your request on the work of the Office of Inspector General (OIG) concerning the Department of Energy's (Department) activities related to the American Recovery and Reinvestment Act of 2009 (Recovery Act). The intent of the Recovery Act was

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Department of Energy Opens Appliance Standards Investigation for Certain  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Opens Appliance Standards Investigation for Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps March 26, 2010 - 6:55pm Addthis WASHINGTON, DC - The U.S. Department of Energy announced today that it has opened an investigation to determine whether certain air conditioners and heat pump products manufactured by Air Con International comply with federal energy efficiency standards. The subpoena issued on Wednesday requires Air Con to submit detailed information about the energy consumption of its products and how Air Con marketed and sold them in the U.S. This action follows similar subpoenas issued earlier in the week for

222

Pre-Investigation Geological Appraisal Of Geothermal Fields | Open Energy  

Open Energy Info (EERE)

Pre-Investigation Geological Appraisal Of Geothermal Fields Pre-Investigation Geological Appraisal Of Geothermal Fields Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Pre-Investigation Geological Appraisal Of Geothermal Fields Details Activities (2) Areas (1) Regions (0) Abstract: In recent years there has been interest in the possibility of generating electricity from geothermal steam in many countries. The initial stage is the preliminary evaluation of geothermal resources and, apart from economic considerations, the problem is essentially geological. This paper deals with the factors involved in the selection of areas that warrant expenditure on investigation and development. Preferred requirements in geothermal fields for power generation are temperatures above 200°C and permeable aquifers or zones within 2000 m from the surface. The existence

223

DOE Closes Investigation into Alleged Lighting Efficiency Violations |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE Closes Investigation into Alleged Lighting Efficiency DOE Closes Investigation into Alleged Lighting Efficiency Violations DOE Closes Investigation into Alleged Lighting Efficiency Violations April 16, 2010 - 10:39am Addthis The U.S. Department of Energy has closed its investigation into the energy efficiency of lighting products manufactured by Habitex Corporation and sold under the Target and Adesso brand names based on test data provided by the companies. The Department requested information from the three companies last month in response to a complaint that these products did not meet the Department's energy efficiency standards for torchieres. Responding promptly to the Department's inquiry, the companies provided test data showing that these products did not meet the Energy Policy and Conservation Act's definition of torchiere and, as a result, did not

224

W-67: Investigating Strain-Induced Martensitic Transformation in ...  

Science Conference Proceedings (OSTI)

In this regard, we investigated the strain-induced martensitic transformation of .... W-43: Existence of Niobium in Ductile Iron and Its Effect on the Morphology of ... Sensing Characteristics of Nanocrystalline Tin Oxide Through Fabrication of...

225

Accident Investigation of the Fall Injury at the Savannah River...  

NLE Websites -- All DOE Office Websites (Extended Search)

U.S. Department of Energy Office of Environmental Management Accident Investigation Report Fall Injury Accident at the Savannah River Site on July 1, 2011 August 8, 2011 Disclaimer...

226

APPLICATION FOR NUCLEAR SUBSTANCE USER PERMIT 1. a) Principal Investigator: ________________________  

E-Print Network (OSTI)

APPLICATION FOR NUCLEAR SUBSTANCE USER PERMIT 1. a) Principal Investigator-Mail: ____________________________________ 2. Previous experience in nuclear substance work by applicant: ________________________________________________________________________ 3. List all rooms where nuclear substances will be used or stored

Beaumont, Christopher

227

A Numerical Investigation of New England Coastal Frontogenesis  

Science Conference Proceedings (OSTI)

A three-dimensional, primitive equation, boundary-layer model is used to investigate wintertime mesoscale frontogenesis along the New England coast. Some features included in the model are a terrain-following coordinate system to study the ...

Robert J. Ballentine

1980-10-01T23:59:59.000Z

228

Investigation-Derived Waste Management Plan. Revision 2  

SciTech Connect

SRS has implemented a comprehensive environmental program to maintain compliance with environmental regulations and mitigate impacts to the environment. One element of the environmental program is the investigation of inactive waste units. Environmental Investigation-Derived Waste (IDW). IDW may include purge water , soil cuttings, drilling fluids, well pumping test and development water, decontamination solutions, contaminated equipment, and personal protection equipment (PPE). In cases where investigations confirm the presence of contamination and the IDW contains waste constituents in concentrations high enough to be of environmental or health concern, special management procedures are warranted. This IDW Management Plan describes specific SRS initiatives for IDW management. The goal is the development of a plan for prudent management of IDW from environmental investigations that is protective of human health and the environment.

Molen, G.

1995-05-24T23:59:59.000Z

229

A Numerical Investigation of Mixed-Layer Dynamics  

Science Conference Proceedings (OSTI)

The structure of the stratified turbulent upper mixed layer of the ocean has been numerically investigated by using the turbulence closure model of Gibson and Launder, under the action of an impulsive wind stress ?0 and zero surface heat flux. ...

Pijush K. Kundu

1980-02-01T23:59:59.000Z

230

An Investigation of Flow Regimes Affecting the Mexico City Region  

Science Conference Proceedings (OSTI)

The Regional Atmospheric Modeling System (RAMS) is used to investigate the detailed mesoscale flow structure over the Mexico City region for a 3-day period in February 1991. The model simulation is compared with rawinsonde and tethersonde profile ...

James E. Bossert

1997-02-01T23:59:59.000Z

231

Light trapping limits in plasmonic solar cells: an analytical investigation  

E-Print Network (OSTI)

We analytically investigate the light trapping performance in plasmonic solar cells with Si/metallic structures. We consider absorption enhancements for surface plasmon polaritons (SPPs) at planar Si/metal interfaces and ...

Sheng, Xing

232

Upscale Evolution of MCSs: Doppler Radar Analysis and Analytical Investigation  

Science Conference Proceedings (OSTI)

The development of two small mesoscale convective systems (MCSs) in northeastern Colorado is investigated via dual-Doppler radar analysis. The first system developed from several initially isolated cumulonimbi, which gradually coalesced into a ...

Ray L. McAnelly; Jason E. Nachamkin; William R. Cotton; Melville E. Nicholls

1997-06-01T23:59:59.000Z

233

Investigation of polarization anisotropy in individual porous silicon nanoparticles  

Science Conference Proceedings (OSTI)

Polarization anisotropy is investigated in single porous silicon nanoparticles containing multiple chromophores. Two forms of nanoparticle samples are studied; low current density (LCD) and high current density (HCD). Photoluminescence measurements reveal ... Keywords: Anisotropy, Photoluminescence, Polarization, Porous silicon, Silicon nanocrystal

Daniel J. Gargas; Donald J. Sirbuly; Michael D. Mason; Paul J. Carson; Steven K. Buratto

2008-09-01T23:59:59.000Z

234

Investigation of 3-D Heat Transfer Effects in Fenestration Products.  

E-Print Network (OSTI)

??ABSTRACT INVESTIGATION OF 3-D HEAT TRANSFER EFFECTS IN FENESTRATION PRODUCTS SEPTEMBER 2010 SNEH KUMAR B. TECH., INDIAN INSTITUTE OF TECHNOLOGY, CHENNAI INDIA M.S.M.E., UNIVERSITY OF (more)

Kumar, Sneh

2010-01-01T23:59:59.000Z

235

C7: Investigation on the Dielectric Response of PLZT Ferroelectric ...  

Science Conference Proceedings (OSTI)

A8: Microstructural Investigation of Nano-Calcium Phosphates Doped with Fluoride Ions .... D7: Surfactant Structureproperty Relationship: Effect of Polypropylene ... E4: The Effect of Monobutyl Ether Ethylene Glycol on the Conductivity and...

236

J46: Preliminary Investigations of the Precipitation Hardening Alloy ...  

Science Conference Proceedings (OSTI)

A8: Microstructural Investigation of Nano-Calcium Phosphates Doped with Fluoride Ions .... D7: Surfactant Structureproperty Relationship: Effect of Polypropylene ... E4: The Effect of Monobutyl Ether Ethylene Glycol on the Conductivity and...

237

Black Carbon Soot Impact on Snow Albedo: A Laboratory Investigation  

NLE Websites -- All DOE Office Websites (Extended Search)

Black Carbon Soot Impact on Snow Albedo: A Laboratory Investigation Speaker(s): Odelle Hadley Date: August 13, 2009 - 12:00pm Location: 90-3075 This presentation examines the...

238

Investigation of Piloting Aids for Manual Control of Hypersonic Maneuvers  

Science Conference Proceedings (OSTI)

An investigation of piloting aids designed to provide precise maneuver control for an air-breathing hypersonic vehicle is described. Stringent constraints and nonintuitive high-speed flight effects associated with maneuvering in the hypersonic regime ...

Raney David L.; Phillips Michael R.; Jr Lee H. Person

1995-10-01T23:59:59.000Z

239

Laboratory Investigations in Support of Carbon Dioxide-Limestone...  

NLE Websites -- All DOE Office Websites (Extended Search)

MA 01854 617-253-6595 eeadams@mit.edu Laboratory InvestIgatIons In support of Carbon DIoxIDe-LImestone sequestratIon In the oCean Background Many approaches have been proposed...

240

Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation)  

DOE Green Energy (OSTI)

Presentation on Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation) for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia on May 23-26, 2005.

Pesaran, A.; Kim, G.; Markel, T.; Wipke, K.

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

NETL: Investigation on Flame Characteristics and Burner Operability...  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion CO2 Emissions Control Investigation on Flame Characteristics and Burner Operability Issues of Oxy-Fuel Combustion Project No.: DE-FE0002402 NETL has partnered with...

242

Final work plan for targeted investigation at Hilton, Kansas.  

SciTech Connect

This Work Plan outlines the scope of a targeted investigation to update the status of carbon tetrachloride contamination in groundwater associated with grain storage operations at Hilton, Kansas. The Commodity Credit Corporation (CCC), an agency of the U.S. Department of Agriculture (USDA), operated a grain storage facility in Hilton during the 1950s and 1960s. At the time of the CCC/USDA operation in Hilton, grain storage facilities (CCC/USDA and private) were located along the both sides of the former Union Pacific railroad tracks (Figure 1.1). The main grain storage structures were on or near the railroad right-of-way. The proposed targeted investigation, to be conducted by Argonne National Laboratory on the behalf of CCC/USDA, will supplement Argonne's Phase I and Phase II investigations in 1996-1997. The earlier investigations erroneously focused on an area east of the railroad property where the CCC/USDA did not operate, specifically on a private grain storage facility. In addition, the investigation was limited in scope, because access to railroad property was denied (Argonne 1997a,b). The hydrogeologic system at Hilton is potentially complex.

LaFreniere, L. M.; Environmental Science Division

2007-08-28T23:59:59.000Z

243

Applying a Modified Triad Approach to Investigate Wastewater lines  

Science Conference Proceedings (OSTI)

Approximately 20 miles of wastewater lines are below grade at an active military Base. This piping network feeds or fed domestic or industrial wastewater treatment plants on the Base. Past wastewater line investigations indicated potential contaminant releases to soil and groundwater. Further environmental assessment was recommended to characterize the lines because of possible releases. A Remedial Investigation (RI) using random sampling or use of sampling points spaced at predetermined distances along the entire length of the wastewater lines, however, would be inefficient and cost prohibitive. To accomplish RI goals efficiently and within budget, a modified Triad approach was used to design a defensible sampling and analysis plan and perform the investigation. The RI task was successfully executed and resulted in a reduced fieldwork schedule, and sampling and analytical costs. Results indicated that no major releases occurred at the biased sampling points. It was reasonably extrapolated that since releases did not occur at the most likely locations, then the entire length of a particular wastewater line segment was unlikely to have contaminated soil or groundwater and was recommended for no further action. A determination of no further action was recommended for the majority of the waste lines after completing the investigation. The modified Triad approach was successful and a similar approach could be applied to investigate wastewater lines on other United States Department of Defense or Department of Energy facilities. (authors)

Pawlowicz, R.; Urizar, L. [Bechtel National, Inc., 1230 Columbia St., Suite 400, San Diego, CA 92101 (United States); Blanchard, S. [Brown and Caldwell, 9665 Chesapeake Drive, Suite 201, San Diego, CA 92123 (United States); Jacobsen, K. [Naval Facilities Engineering Command, Southwest 1220 Pacific Highway, San Diego, CA 92132 (United States); Scholfield, J. [EarthTech, 841 Bishop St., Suite 500, Honolulu, HI 96813 (United States)

2006-07-01T23:59:59.000Z

244

DOE Opens Three Investigations into Alleged Refrigerator Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Opens Three Investigations into Alleged Refrigerator Efficiency Opens Three Investigations into Alleged Refrigerator Efficiency Violations DOE Opens Three Investigations into Alleged Refrigerator Efficiency Violations April 12, 2010 - 7:27pm Addthis The Department of Energy has issued one subpoena and two data requests to three companies in response to allegations that the companies are selling refrigerator-freezers that failed to meet federal energy efficiency standards. Under the subpoena, Arçelik A.S, a Turkish Company is required to submit detailed information about the design, marketing and U.S. sales of its Blomberg brand refrigerator-freezer, model "BRFB1450." The Department also requested testing data from Whirlpool Corporation and Viking Range Corporation for two refrigerator-freezers that the companies

245

DOE Closes Investigation into Energy Efficiency of Viking Refrigerator |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

into Energy Efficiency of Viking into Energy Efficiency of Viking Refrigerator DOE Closes Investigation into Energy Efficiency of Viking Refrigerator November 9, 2010 - 7:30pm Addthis The Department of Energy has closed its investigation into the energy efficiency of Viking Range Corporation's refrigerator-freezer model VCSB542. The Department initiated this investigation in response to allegations that the model failed to meet federal energy efficiency standards. After reviewing data provided by Viking for this model, the Department issued a testing demand on June 16, 2010 and initially tested four units, one of which was defective and replaced by a fifth unit. The test results showed that two Viking units failed the federal energy standard for maximum energy use, while two passed. Because of the wide variation in the

246

A Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs  

Open Energy Info (EERE)

Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Area In Northern Greece Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Area In Northern Greece Details Activities (0) Areas (0) Regions (0) Abstract: In total 24 direct current resistivity soundings were carried out during the preliminary stages of a geothermal exploration survey of the Langada hot springs area (northern Greece). The analysis of the data revealed a horst-type morphology striking NW-SE. Correlation between the location of hot springs, successful drill holes and the basement (horst) indicates that the sector of geothermal interest is concentrated along the major axis of the horst mapped. The horst type geothermal structure fits in

247

Investigation of tearing instability phenomena in ASTM A106 steel  

SciTech Connect

An experimental investigation was performed to evaluate tearing instability theory by varying the applied tearing modulus, T/sub applied/, so that fracture instability would be initiated at various levels of stable crack extension. This is an extension of past investigations of tearing instability theory in that crack extension was monitored continuously using the dc potential drop technique, enabling the applied and material tearing moduli to be calculated at the point of instability. The results of this investigation indicate that, in most cases, fracture instability occurred when the difference between the applied and material tearing moduli was on the order of 10%. Variations in the load versus displacement records of the specimens near maximum load due to local instabilities and friction in the load train precluded measurement of a smooth applied tearing modulus curve.

Link, R.E.; Hays, R.A.

1986-05-01T23:59:59.000Z

248

Structural investigations at the Coso geothermal area using remote sensing  

Open Energy Info (EERE)

investigations at the Coso geothermal area using remote sensing investigations at the Coso geothermal area using remote sensing information, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structural investigations at the Coso geothermal area using remote sensing information, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: Remote sensing studies have been made in and adjacent to the Coso geothermal field using TM FCC satellite imagery, 1:100,000 scale, US Geological Survey orthophotos, 1:24,OOO scale, and proprietary black-and-white photography by California Energy Company, Inc., at various scales including black-and-white positive film transparencies at a scale of 1:6,000. These studies have been made in an attempt to understand the complex geology seen on the surface and to try to improve the method of

249

House Subcommittee on Oversight and Investigations of the Committee on  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

House Subcommittee on Oversight and Investigations of the Committee House Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce House Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce April 20, 2007 - 12:36pm Addthis Statement of Secretary Samuel Bodman Chairman Stupak, Congressman Whitfield, and Members of the Subcommittee, I'm pleased to appear before you to discuss what I consider to be one of the most pressing management issues confronting the Department of Energy (DOE). Since coming to the Department, one of my top goals has been to institute a safer, more secure work environment across the DOE complex. And I have meant this to include physical safety and security as well as cyber security. I want to be absolutely clear here: the protection of sensitive information is essential to our ability to meet our mission as a

250

GEOTECHNICAL INVESTIGATION CHEVRON GULF OF MEXICO GAS HYDRATES JIP  

NLE Websites -- All DOE Office Websites (Extended Search)

GEOTECHNICAL INVESTIGATION GEOTECHNICAL INVESTIGATION CHEVRON GULF OF MEXICO GAS HYDRATES JIP BLOCKS 13 AND 14, ATWATER VALLEY AREA BLOCK 151, KEATHLEY CANYON AREA GULF OF MEXICO RESULTS OF CORE SAMPLE ANALYSIS, STANDARD AND ADVANCED LABORATORY TESTING Report No. 0201-5081 CHEVRON TEXACO ENERGY TECHNOLOGY COMPANY Houston, Texas FUGRO-McCLELLAND MARINE GEOSCIENCES, INC. P. O. Box 740010, Houston, Texas 77274, Phone: 713-369-5600, Fax: 713-369-5570 GEOTECHNICAL INVESTIGATION CHEVRON GULF OF MEXICO GAS HYDRATES JIP BLOCKS 13 AND 14, ATWATER VALLEY AREA BLOCK 151, KEATHLEY CANYON AREA GULF OF MEXICO RESULTS OF CORE SAMPLE ANALYSIS, STANDARD AND ADVANCED LABORATORY TESTING REPORT NO. 0201-5081 Client: ChevronTexaco Energy Technology Company 1500 Louisiana St. Houston, Tx 77002

251

Chemical And Isotopic Investigation Of Warm Springs Associated With Normal  

Open Energy Info (EERE)

Isotopic Investigation Of Warm Springs Associated With Normal Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Details Activities (3) Areas (1) Regions (0) Abstract: Thermal springs associated with normal faults in Utah have been analyzed for major cations and anions, and oxygen and hydrogen isotopes. Springs with measured temperatures averaging greater than 40°C are characterized by Na + K- and SO4 + Cl-rich waters containing 103 to 104 mg/l of dissolved solids. Lower temperature springs, averaging less than 40°C, are more enriched in Ca + Mg relative to Na + K. Chemical variations monitored through time in selected thermal springs are probably produced by

252

Field Investigations And Temperature-Gradient Drilling At Marine Corps  

Open Energy Info (EERE)

Investigations And Temperature-Gradient Drilling At Marine Corps Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Field Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Details Activities (4) Areas (1) Regions (0) Abstract: The U.S. Navy's Geothermal Program Office (GPO) has been conducting geothermal exploration activities in the Camp Wilson area of Marine Corps Air-Ground Combat Center (MCAGCC), Twenty-nine Palms, CA, for almost two years. Work has included self-potential (SP) surveys, fault structure analyses using LiDAR surveys, and drilling and assessment of five (5) temperature-gradient holes. For several decades the GPO has worked

253

An Integrated Mapping And Remote Sensing Investigation Of The Structural  

Open Energy Info (EERE)

Mapping And Remote Sensing Investigation Of The Structural Mapping And Remote Sensing Investigation Of The Structural Control For Fumarole Location In The Eburru Volcanic Complex, Kenya Rift Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: An Integrated Mapping And Remote Sensing Investigation Of The Structural Control For Fumarole Location In The Eburru Volcanic Complex, Kenya Rift Details Activities (0) Areas (0) Regions (0) Abstract: The Eburru volcanic complex is located in the central portion of the Kenya Rift. It belongs to the complex of volcanoes - Suswa, Longonot, Olkaria, Eburru, and Menengai - that. form the Kenya Dome. These volcanoes are geothermal fields, and Olkaria is the site for the first geothermal power plant commissioned in 1981 in the East African Rift System (EARS).

254

Experimental and Modeling Investigation of Radionuclide Interaction and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Experimental and Modeling Investigation of Radionuclide Interaction Experimental and Modeling Investigation of Radionuclide Interaction and Transport in Representative Geologic Media Experimental and Modeling Investigation of Radionuclide Interaction and Transport in Representative Geologic Media The natural system is an integral part of a geologic nuclear waste repository; it extends from the disturbed rock zone (DRZ) around a disposal room, created by mechanical, thermal and chemical perturbations due to underground excavation or waste emplacement, to the surrounding geologic media, and out to a specified repository boundary. The natural system evaluation and tool development work supports anticipated future site screening, site selection, site characterization, and site suitability. This work is conducted to reduce uncertainty in natural system performance

255

Investigation of Unusual Albedos in the SGP Domain  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of Unusual Albedos in the SGP Domain Investigation of Unusual Albedos in the SGP Domain Groff, David ARM SGP Duchon, Claude University Of Oklahoma Category: Atmospheric State and Surface We investigate the cause of unusually high albedos at an Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) extended facility near Morris, OK. In a previous study, daily albedos were calculated at several SGP extended facilities for 1998 and 1999 using broadband (.28 to 3 microns) pyranometers. The average daily albedo during this period was calculated to be at least about 5% higher at Morris than at any of the other SGP extended facilities. Surface based measurements of daily albedos at Morris and two nearby SGP extended facilities during 2004 and 2005 suggest the unusually high albedo measurements at Morris are real.

256

ORISE: Multi-Agency Radiation Survey and Site Investigation Manual  

NLE Websites -- All DOE Office Websites (Extended Search)

Site Investigation Manual (MARSSIM) Site Investigation Manual (MARSSIM) As greater attention is being directed toward the decontamination and decommissioning (D&D) of nuclear facilities, the need for a standardized approach for implementing the necessary radiological surveys has become increasingly important. A multi-agency committee representing the U.S. Department of Defense (DOD), U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and U.S. Nuclear Regulatory Commission (NRC) has addressed this need by producing a guidance document known as the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM). Published in December 1997, MARSSIM provides detailed guidance for planning, implementing and evaluating environmental and facility radiological surveys to demonstrate compliance with a dose- or risk-based

257

House Subcommittee on Oversight and Investigations of the Committee on  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oversight and Investigations of the Committee Oversight and Investigations of the Committee on Energy and Commerce House Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce April 20, 2007 - 12:36pm Addthis Statement of Secretary Samuel Bodman Chairman Stupak, Congressman Whitfield, and Members of the Subcommittee, I'm pleased to appear before you to discuss what I consider to be one of the most pressing management issues confronting the Department of Energy (DOE). Since coming to the Department, one of my top goals has been to institute a safer, more secure work environment across the DOE complex. And I have meant this to include physical safety and security as well as cyber security. I want to be absolutely clear here: the protection of sensitive information is essential to our ability to meet our mission as a

258

NHTSA's Office of Defects Investigation (ODI) - Technical Service Bulletins  

NLE Websites -- All DOE Office Websites (Extended Search)

NHTSA's Office of Defects Investigation (ODI) - Technical Service Bulletins NHTSA's Office of Defects Investigation (ODI) - Technical Service Bulletins System (TSBS) - Downloadable file Manufacturing Data/Tools Research/Tech Services Apps Challenges Blogs Let's Talk Manufacturing You are here Data.gov » Communities » Manufacturing » Data NHTSA's Office of Defects Investigation (ODI) - Technical Service Bulletins System (TSBS) - Downloadable file Dataset Summary Description The Technical Service Bulletins data contains summaries of the Manufacturers' Technical Service Bulletins by single year, make and model. An optional item of Vehicle Component may be also available. (The data does not contain all the service bulletins generated by a manufacturer. Bulletins for safety recalls in general are not included, and also bulletins which may not pertain to a defect may not be included.)

259

ISG8-Ground Motion; Site Requirements and Investigations  

NLE Websites -- All DOE Office Websites (Extended Search)

Ground Motion; Site Requirements and Investigations (WG5) Ground Motion; Site Requirements and Investigations (WG5) June 24 - 27, 2002 Bldg.281 Conventional Facilities Rm. (A. Seryi, T. Tauchi) Parallel Sessions: Working Groups: WG1: Parameters, Design, Instrumentation and Tuning WG2: Damping Rings and ATF WG3: RF Sources WG4:Structures WG5: Ground Motion; Site Requirements and Investigations Agenda, ISG8 WG5 Final Version Goal: The main goal is to try to establish requirements to a linear collider site and determine a set of criteria that would allow evaluating a particular site. Trip to California representative sites: Scheduled and happened on Friday, departure 6am. This was a full day event. (Fred Asiri and Jerry Aarons were the guides). Monday, June 24, 11:00-12:00 Initial discussion Monday (joint with WG1) 13:30-17:30, Bldg.212, Cascades room

260

A Fluid-Inclusion Investigation Of The Tongonan Geothermal Field,  

Open Energy Info (EERE)

Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Philippines Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Philippines Details Activities (0) Areas (0) Regions (0) Abstract: At least 660 fluid-inclusion homogenization temperature (Th) and 44 freezing temperature (Tm) measurements, mainly on anhydrite crystals sampled to 2.5 km depth from 28 wells, record thermal and chemical changes in the Tongonan geothermal field. Interpretations of the Th (175-368°C range). Tm (-0.3 to -12.7°C range) and crushing stage observations indicate that early trapped fluids contained up to (approximate)2 mol% CO2 (now measured at <0.4 mol%). reservoir temperatures have decreased by

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

DOE Opens Three Investigations into Alleged Refrigerator Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Opens Three Investigations into Alleged Refrigerator Efficiency Opens Three Investigations into Alleged Refrigerator Efficiency Violations DOE Opens Three Investigations into Alleged Refrigerator Efficiency Violations April 12, 2010 - 7:27pm Addthis The Department of Energy has issued one subpoena and two data requests to three companies in response to allegations that the companies are selling refrigerator-freezers that failed to meet federal energy efficiency standards. Under the subpoena, Arçelik A.S, a Turkish Company is required to submit detailed information about the design, marketing and U.S. sales of its Blomberg brand refrigerator-freezer, model "BRFB1450." The Department also requested testing data from Whirlpool Corporation and Viking Range Corporation for two refrigerator-freezers that the companies

262

Geothermal investigations in Idaho. Part 1. Geochemistry and geologic  

Open Energy Info (EERE)

investigations in Idaho. Part 1. Geochemistry and geologic investigations in Idaho. Part 1. Geochemistry and geologic setting of selected thermal waters Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal investigations in Idaho. Part 1. Geochemistry and geologic setting of selected thermal waters Details Activities (2) Areas (1) Regions (0) Abstract: At least 380 hot springs and wells are known to occur throughout the central and southern parts of Idaho. One hundred twenty-four of these were inventoried as a part of the study reported on herein. At the spring vents and wells visited, the thermal waters flow from rocks ranging in age from Precambrian to Holocene and from a wide range of rock types-igneous, metamorphic, and both consolidated and unconsolidated sediments. Twenty-eight of the sites visited occur on or near fault zones while a

263

ARM - Publications: Science Team Meeting Documents: Investigation of the  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of the impact of aerosols on clouds during the 2003 Aerosol Investigation of the impact of aerosols on clouds during the 2003 Aerosol IOP at the SGP Guo, Huan University of Michigan Aerosol-cloud interaction, that is, the aerosol indirect effect (AIE), is one of the largest uncertainties in the estimation of the aerosol radiative forcing. IPCC (2001) estimated the aerosol forcing ranging from 0 to -4.8W/m^2. So it is very important to investigate and understand the impact of the aerosol on the cloud optical, microphysical and macrophysical properties. The Active Tracer High-resolution Atmospheric Model (ATHAM) is used as a cloud resolving model to examine the effect of aerosols on clouds. In the simulation of the Second Aerosol Characterization Experiment (ACE-2), ATHAM was generally able to reproduce the observed cloud

264

Investigative Tools and Techniques for Indoor Air Quality Studies  

E-Print Network (OSTI)

Indoor air quality problems are diverse and often complex. Adverse indoor air quality problems can exist which create symptomatic conditions for building occupants. Often, the exact cause, or causes, of the substandard indoor air quality are unknown. Therefore, an investigative approach must usually be taken to identify the source(s) of the air quality problem, and if present, air contaminant concentrations. As the general public becomes more aware of the problems associated with poor indoor air quality conditions, an associated increase in air quality evaluation requests can be expected. This paper discusses some of the various investigative tools and techniques that can be utilized to identify air quality contaminants when performing an indoor air quality evaluation. These investigative tools and techniques can be used to develop a site specific list of possible contaminants and their sources, and can then be used to determine which contaminants are, in fact, present in adverse concentrations. Some of the investigative tools and techniques to be discussed in this paper include the following: visual inspections and site observations, information searches, review of building construction, review of ventilation systems, interviews, low and high volume sampling pumps, flow and oxygen meters, portable photoionization and flame ionization detectors (PID & FID), various types of vapor detector tubes, and gas chromatograph/mass spectrophotometer (GC/MS) analysis. This paper will be an introductory overview of the above listed investigative tools and techniques. The paper's attempt is to acquaint the reader with these investigative tools and techniques, and how they can assist the reader in an air quality evaluation.

Kennedy, S. R.; Quinn, C. B.; Henderson, J. E.; Vickery, R. G.

1994-01-01T23:59:59.000Z

265

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

NLE Websites -- All DOE Office Websites (Extended Search)

10 10 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory January 15, 2011 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 17 Repor t Report Type: Quarterly Starting October 1, 2010 Ending December 31, 2010 Author: John A. Dunbar Baylor University Department of Geology January 15, 2011 DOE Award Number: DE-FC26-06NT142959

266

Midnite mine summary report. Report of investigations/1996  

Science Conference Proceedings (OSTI)

The Midnite Mine is an inactive, hard-rock uranium mine in Stevens County WA. Oxidation of sulfide-containing minerals in the ore body produces large quantities of acidic water. The Report of Investigations summarizes the studies that were completed on: (1) treatment alternatives for uranium contaminated acid mine drainage, and (2) overall site reclamation, including: ground water flowpaths in the bedrock, radiation, and waste rock reactivity. As an aid to site reclamation, a Geographic Information System database was also produced that contains available current and historic data and information on the Midnite Mine. The report explains the scope of the Bureau`s study and summarizes the results of its investigations.

Dean, N.E.; Boldt, C.M.K.; Schultze, L.E.; Nilsen, D.N.; Isaacson, A.E.

1996-06-01T23:59:59.000Z

267

Investigations of the Dynamics of Space Charged Dominated Beams  

SciTech Connect

We propose to perform investigations of the dynamics of space charge dominated beams. These investigations will support present activities such as the electron ring project at the University of Maryland as well as provide an improved basis for future accelerator designs. Computer simulations will provide the primary research element with improved code development being an integral part of the activities during the first period. We believe that one of the code development projects provides a unique strategy for the inclusion of longitudinal dynamics, and that this concept should provide a computationally rapid research tool.

York, Richard C.

2002-08-01T23:59:59.000Z

268

Geothermal resource investigations, Imperial Valley, California. Status report  

DOE Green Energy (OSTI)

The discussion is presented under the following chapter titles: geothermal resource investigations, Imperial Valley, California; the source of geothermal heat; status of geothermal resources (worldwide); geothermal aspects of Imperial Valley, California; potential geothermal development in Imperial Valley; environmental considerations; and proposed plan for development. (JGB)

Not Available

1971-04-01T23:59:59.000Z

269

Combustion Effects Investigation at the Martin Lake Station  

Science Conference Proceedings (OSTI)

One key to improving the availability of coal-fired plants is an improved understanding of the impact of combustion conditions on deposit formation on furnace walls. This report builds on a previously developed model of a unit at the Martin Lake Generating Station to investigate the conditions contributing to excessive slagging at the plant.

2009-11-25T23:59:59.000Z

270

Kaizen and Stochastic Networks Support the Investigation of Aircraft Failures  

Science Conference Proceedings (OSTI)

Investigating the causes of aircraft failures and preventing their reoccurrence are crucial to achieving and maintaining a high flight safety level; technical failure-analysis teams usually perform these functions. We developed and applied a dual-phased ... Keywords: applications, engineering, graphs, networks, queues, simulation

Izack Cohen

2010-05-01T23:59:59.000Z

271

Mineral Oil Transport and Fate Investigation at Franklin Station  

Science Conference Proceedings (OSTI)

This report presents results of an investigation to evaluate the fate and transport of mineral oil in the subsurface of a substation. Understanding subsurface migration of mineral oil will help utilities who are involved in cleanup of past mineral oil spills and leaks.

1998-12-31T23:59:59.000Z

272

As if being there: mediated reality for crime scene investigation  

Science Conference Proceedings (OSTI)

This paper presents a novel mediated reality system designed to support collaboration between crime scene investigators during a first analysis on a crime scene, remotely supported by expert colleagues. Requirements elicited from interviews and interactive ... Keywords: augmented reality, collaborative spatial analysis, mediated reality

Ronald Poelman; Oytun Akman; Stephan Lukosch; Pieter Jonker

2012-02-01T23:59:59.000Z

273

High Technology Crime Investigator's Handbook, 1st edition  

Science Conference Proceedings (OSTI)

From the Publisher:High-Technology-Crime Investigator's Handbook is coming at a time when high-technology crime is growing at a rapid pace, and private and public law enforcement are struggling to keep up. This book will inform readers about the potential ...

Gerald Kovacich; William F. Boni; William C. Boni

1999-09-01T23:59:59.000Z

274

Power Transformer Failure Investigation and Root Cause Analysis  

Science Conference Proceedings (OSTI)

This report provides practical, step-by-step guidance to help utility personnel gather evidence and perform investigations on failed or retired high-voltage substation power transformers to assist in determining the cause of the transformer failure or the service condition of retired units.

2011-12-21T23:59:59.000Z

275

Why Do States Adopt Renewable Portfolio Standards?: An Empirical Investigation  

E-Print Network (OSTI)

131 Why Do States Adopt Renewable Portfolio Standards?: An Empirical Investigation Thomas P. Lyon* and Haitao Yin** Renewable portfolio standards (RPSs) for electricity generation are politically popularU.S.stategovernments of Renewable Portfolio Standards (RPSs) as a policy tool for promoting renewable electricity generation. An RPS

Lyon, Thomas P.

276

Investigation on Lightweight High-Volume Fly Ash Concrete  

Science Conference Proceedings (OSTI)

This report presents the results of a study that developed an engineering data base on HVFA lightweight concrete. The investigation also identified potential problems that might be experienced in commercializing lightweight concrete production. The study was based on the use of high volume flyash (HVFA) in the concrete process.

1997-03-26T23:59:59.000Z

277

Investigation of Enhanced Heat Transfer Coefficient with an Electrostatic Grid  

Science Conference Proceedings (OSTI)

Some major contributors to efficiency loss in a fossil or nuclear plant are associated with nucleation of moisture from superheated steam, formation and release of liquid films on turbine surfaces, and the flow and condensation of moist steam into the turbine exhaust and condenser. This report investigates the possible effect of an electrostatic charge on these processes and therefore on heat transfer.

2004-09-15T23:59:59.000Z

278

Power Transformer Failure Investigation and Root Cause Analysis  

Science Conference Proceedings (OSTI)

This report provides practical, step-by-step guidance to help utility personnel gather evidence and perform investigations on failed or retired high-voltage substation power transformers to assist in determining the cause of the transformer failure or the service condition of retired units.

2010-12-23T23:59:59.000Z

279

Investigations of Ubicomp in the oil and gas industry  

Science Conference Proceedings (OSTI)

In this paper we describe a use context for ubicomp technology seldom investigated: the industrial setting, and in particular, the oil and gas industry. We suggest that the field offers interesting challenges to the ubicomp field and briefly outline ... Keywords: industrial, oil and gas, ubiquitous computing

Clint Heyer

2010-09-01T23:59:59.000Z

280

Investigative analysis across documents and drawings: visual analytics for archaeologists  

Science Conference Proceedings (OSTI)

With the invention and rapid improvement of data-capturing devices, such as satellite imagery and digital cameras, the information that archaeologists must manage in their everyday's activities has rapidly grown in complexity and amount. In this work ... Keywords: information visualization, investigative analysis, rock art archaeology, visual analytics

V. Deufemia; L. Paolino; G. Tortora; A. Traverso; V. Mascardi; M. Ancona; M. Martelli; N. Bianchi; H. De Lumley

2012-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Investigating self-reporting behavior in long-term studies  

Science Conference Proceedings (OSTI)

Self-reporting techniques, such as data logging or a diary, are frequently used in long-term studies, but prone to subjects' forgetfulness and other sources of inaccuracy. We conducted a six-week self-reporting study on smartphone usage in order to investigate ... Keywords: application usage, long-term study, self-reporting, survey

Andreas Mller; Matthias Kranz; Barbara Schmid; Luis Roalter; Stefan Diewald

2013-04-01T23:59:59.000Z

282

An Investigation of Preservice Elementary Teachers' Thinking About Science  

E-Print Network (OSTI)

An Investigation of Preservice Elementary Teachers' Thinking About Science Introduction There appear to be many prominent scientists vexed by the extent of anti-science attitudes in the public precedence is neither validation nor invalidation for the present concerns these scientists have about anti-science

Cobern, William W.

283

B2: Investigation of Increasing Titanium Dioxide on Structural ...  

Science Conference Proceedings (OSTI)

For investigating the glass structures FTIR spectrometer in 400 4000 cm-1 was used. .... D22: Phase Field Model of Li Dendrite Formation in Lithium Ion Batteries ... D6: Viscosity of Ethylene Glycol+Water Based Al2O3 Nanofluids with...

284

A Radio-Controlled Aircraft to Investigate Atmospheric Turbulence  

Science Conference Proceedings (OSTI)

A radio-controlled aircraft model to investigate atmospheric turbulence is described. The model with an airspeed of 2040 m s?1 in the height range between 5 and 550 m and the flight time up to 30 min was equipped to carry a useful load weighing ...

Vitaly P. Kukharets; L. R. Tsvang

1998-02-01T23:59:59.000Z

285

NMR Advanced methodologies to investigate water diffusion in materials  

E-Print Network (OSTI)

NMR Advanced methodologies to investigate water diffusion in materials and biological systems Ph · Introduction: _Water Diffusion _Experimental technique: NMR · Diffusion NMR: applications to the study glasses · Diffusion NMR in the framework of multi-quantum coherences · Project outline #12;Outlook

Roma "La Sapienza", Università di

286

What Makes a Scientific Research Question Worth Investigating? Students' Epistemic Criteria and Considerations of Contribution  

E-Print Network (OSTI)

ask questions and conduct investigations to try to money to conduct their investigations and that wanted to conduct a science investigation to help

Berson, Eric

2012-01-01T23:59:59.000Z

287

DOE Closes Investigation of ASKO Dishwasher | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ASKO Dishwasher ASKO Dishwasher DOE Closes Investigation of ASKO Dishwasher September 8, 2010 - 4:50pm Addthis The Department of Energy has closed its investigation into the energy efficiency of ASKO Appliance Inc.'s dishwasher model D5122XXLB. After testing this model, the Department has found the model to be compliant with federal energy conservation standards. The Notice of Compliance Determination can be found here. DOE previously referred this model, which ASKO labeled as ENERGY STAR, to the U.S. Environmental Protection Agency (EPA) based on DOE testing showing that it consumed more energy than permitted by the ENERGY STAR program requirements. EPA has since delisted this model from the ENERGY STAR program. Addthis Related Articles DOE Energy Star Testing Reveals Inefficient ASKO Dishwasher

288

Using ex vivo organ culture models as surrogates to investigate  

NLE Websites -- All DOE Office Websites (Extended Search)

ex vivo organ culture models as surrogates to investigate ex vivo organ culture models as surrogates to investigate morphological and functional differences of mammary glands derived from mouse strains that differ in cancer susceptibility to understand the underlying mechanisms of radiation sensitivity or resistance Alvin Lo Lawrence Berkeley National Laboratory Abstract Goal: Within the Lawrence Berkeley National Laboratory’s Low Dose SFA, as part of Project 2, we are using a systems genetics approach to determine the contribution of non-targeted and targeted radiation effects for risk of mammary carcinogenesis. The goal of this work is to characterize the mammary gland of the parental mouse strains, and the F1 and F2 generations used in these studies with respect to tissue architecture and morphogenesis

289

Resource Conservation and Recovery Act (RCRA). Facility Investigation Program Plan  

Science Conference Proceedings (OSTI)

This Resource Conservation and Recovery Act (RCRA) Facility Investigation Program Plan has been developed to provide a framework for the completion of RCRA Facility Investigations (RFI) at identified units on the Savannah Rive Site (SRS) facility. As such, the RFI Program Plan provides: technical guidance for all work to be performed, managerial control, a practical, scientific approach. The purpose of this Overview is to demonstrate how the basic RFI Program Plan elements (technical, management, and approach) are interwoven to provide a practical and workable plan. The goal of the RFI Program Plan is to provide a systematic, uniform approach for performance and reporting. In addition, the RFI Program Plan has been developed to be specific to the SRS facility and to adhere to the Environmental Protection Agency (EPA) RFI guidance received as part of the SRS. The US EPA publication ``Characterization of Hazardous Waste Sites`` has been liberally adapted for use in this RFI Program Plan.

Not Available

1989-06-30T23:59:59.000Z

290

Investigation Letter Report: I11IG002 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Letter Report: I11IG002 Letter Report: I11IG002 Investigation Letter Report: I11IG002 August 17, 2011 Impact of Copper Thefts on the Department of Energy A series of news articles during the last several months have reported increased thefts of copper nationally, including several that have interrupted electrical distribution and telephone service in communities across the country. The Department of Energy's laboratories, environmental remediation sites, generating stations and other facilities have not been immune to this problem. Over the last few years, the Office of Inspector General (OIG) has successfully investigated numerous reports of copper thefts from Department sites nationwide. The OIG believes that there are several practical, cost-effective steps that the Department can

291

ARM - Publications: Science Team Meeting Documents: Investigation of Ice  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of Ice Crystal Shapes Using Multi-resolution Techniques Investigation of Ice Crystal Shapes Using Multi-resolution Techniques McFarquhar, Greg University of Illinois Better knowledge of small-scale features from ice crystals are needed to determine their effects on radiation and hence to improve the treatment of clouds in climate models. With the Cloud Particle Imager (CPI) it is now possible to capture ice crystal images with 2.3 μm resolution and 256 gray scales of illumination, providing an unprecedented wealth of information to utilize in the ongoing quest to understand the small scale structure of ice crystals. In this study, we applied wavelet and fractal analysis to CPI images of ice crystals collected in cirrus by the University of North Dakota Citation during the Intensive Observation Period at the Southern

292

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

NLE Websites -- All DOE Office Websites (Extended Search)

July 1 - September 30, 2011 July 1 - September 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory October 14, 2011 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 20 Repor t Report Type: Quarterly Starting July 1, 2011 Ending September 30, 2011 Author: John A. Dunbar Baylor University Department of Geology October 14, 2011 DOE Award Number: DE-FC26-06NT142959

293

Scanning Transmission Electron Microscopy Investigations of Complex Oxides  

NLE Websites -- All DOE Office Websites (Extended Search)

Scanning Transmission Electron Microscopy Investigations of Complex Oxides Scanning Transmission Electron Microscopy Investigations of Complex Oxides Monday, May 23, 2011 - 3:30pm SSRL Conference room 137-322 Professor Tom Vogt, NanoCenter & Department of Chemistry, University of South Carolina High-Angle-Annular-Dark-Field/Scanning Transmission Electron Microscopy (HAADF/STEM) is a technique uniquely suited for detailed studies of the structure and composition of complex oxides. The HAADF detector collects electrons which have interact inelastically with the potentials of the atoms in the specimen and therefore resembles the better known Z2 (Z is atomic number) Rutherford scattering. One class of important catalysts consists of bronzes based on pentagonal {Mo6O21} building units; these include Mo5O14 and Mo17O47. In the last 20 years, new materials doped with

294

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

NLE Websites -- All DOE Office Websites (Extended Search)

January 1 - March 31, 2012 January 1 - March 31, 2012 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory April 18, 2012 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 22 Repor t Report Type: Quarterly Starting January 1, 2012 Ending March 31, 2012 Author: John A. Dunbar Baylor University Department of Geology April 18, 2012 DOE Award Number: DE-FC26-06NT142959

295

John C. Layton: Before The Subcommittee on Oversight and Investigations  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. House of Representatives U.S. House of Representatives John C. Layton: Before The Subcommittee on Oversight and Investigations U.S. House of Representatives October 23, 1997 Before The Subcommittee on Oversight and Investigations U.S. House of Representatives Statement of John C. Layton, Inspector General Department of Energy The Office of Inspector General, Department of Energy (DOE), has identified deficiencies in the administration of performance-based contracts. I believe that if contracts have incentives, they should encourage superior performance and discourage substandard performance. They should also be structured to ensure that safety is not compromised. We have made recommendations to help assure that incentive fees paid under performance based contracts represent actual achievement by the Department's

296

Investigation of breached depleted UF{sub 6} cylinders  

Science Conference Proceedings (OSTI)

In June 1990, during a three-site inspection of cylinders being used for long-term storage of solid depleted UF{sub 6}, two 14-ton steel cylinders at Portsmouth, Ohio, were discovered with holes in the barrel section of the cylinders. Both holes, concealed by UF{sub 4} reaction products identical in color to the cylinder coating, were similarly located near the front stiffening ring. The UF{sub 4} appeared to have self-sealed the holes, thus containing nearly all of the uranium contents. Martin Marietta Energy Systems, Inc., Vice President K.W. Sommerfeld immediately formed an investigation team to: (1) identify the most likely cause of failure for the two breached cylinders, (2) determine the impact of these incidents on the three-site inventory, and (3) provide recommendations and preventive measures. This document discusses the results of this investigation.

Barber, E.J.; Butler, T.R.; DeVan, J.H.; Googin, J.M.; Taylor, M.S.; Dyer, R.H.; Russell, J.R.

1991-09-01T23:59:59.000Z

297

Investigation of breached depleted UF sub 6 cylinders  

Science Conference Proceedings (OSTI)

In June 1990, during a three-site inspection of cylinders being used for long-term storage of solid depleted UF{sub 6}, two 14-ton steel cylinders at Portsmouth, Ohio, were discovered with holes in the barrel section of the cylinders. Both holes, concealed by UF{sub 4} reaction products identical in color to the cylinder coating, were similarly located near the front stiffening ring. The UF{sub 4} appeared to have self-sealed the holes, thus containing nearly all of the uranium contents. Martin Marietta Energy Systems, Inc., Vice President K.W. Sommerfeld immediately formed an investigation team to: (1) identify the most likely cause of failure for the two breached cylinders, (2) determine the impact of these incidents on the three-site inventory, and (3) provide recommendations and preventive measures. This document discusses the results of this investigation.

Barber, E.J.; Butler, T.R.; DeVan, J.H.; Googin, J.M.; Taylor, M.S.; Dyer, R.H.; Russell, J.R.

1991-09-01T23:59:59.000Z

298

Investigation and simulation of muon cooling rings with tilted solenoids  

DOE Green Energy (OSTI)

Alternating solenoid focused muon cooling ring without special bending magnets is considered and investigate in detail. Both fringe field between solenoid coils with opposite directed current, and an inclination of the coils in vertical plane are used to provide a bending and closing of the particle trajectories. Realistic (Maxwellian) magnetic field is calculated and used for a simulation. Methodic is developed and applied to find closed orbit at any energy, dispersion, region of stability, and other conventional accelerator characteristics. Earlier proposed RFOFO cooling ring with 200 MHz RF system and liquid hydrogen absorbers is investigated in detail. After an optimization, normalized 6D emittance about 20 mm{sup 3} and transmission 57% are obtained.

Valeri I. Balbekov

2003-05-28T23:59:59.000Z

299

Experimental and theoretical investigation of high gradient acceleration  

Science Conference Proceedings (OSTI)

This report contains a technical progress summary of the research conducted under the auspices of DOE Grant No. DE-FG0291ER-40648. Experimental and Theoretical Investigations of High Gradient Acceleration.'' This grant supports three research tasks: Task A consists of the design and fabrication of a 17GHz of photocathode gun, Task B supports the testing of high gradient acceleration using a 33GHz structure, and Task C comprises theoretical investigations, both in support of the experimental tasks and on critical physics issues for the development of high energy linear colliders. This report is organized as follows. The development of an rf gun design and research progress on the picosecond laser system is summarized in Sec. 2, the status of the studies of the LBL/Haimson high gradient structure, using a 50 MW free-electron laser is summarized in Sec. 3, and theoretical research progress is described in Sec. 4. Supporting material is contained in Appendices A-G.

Bekefi, G.; Chen, C.; Chen, S.; Danly, B.; Temkin, R.J.; Wurtele, J.S.

1992-02-01T23:59:59.000Z

300

Investigations into methane accumulation in coal storage silos  

SciTech Connect

The ventilation systems of coal storage silos are normally capable of rapidly dispersing any accumulations of methane in the atmosphere above the coal pile surface. However, the results of an investigation which is presented in this report show that hazardous concentrations of methane can accumulate within the coal pile. Methane trapped within the coal pile is released into the atmosphere of the loading gallery when coal is discharged from a silo. If the methane released is of a flammable concentration it is necessary to ventilate the gallery to reduce the risk of an ignition. This report proposes a simple test, which, after further investigations may prove to be an effective method to calculate gallery ventilation requirements.

Kolada, R.J.

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Microdosimetric investigations at the fast neutron therapy facility at Fermilab  

SciTech Connect

Microdosimetry was used to investigate three issues at the neutron therapy facility (NTF) at Fermilab. Firstly, the conversion factor from absorbed dose in A-150 tissue equivalent plastic to absorbed dose in ICRU tissue was determined. For this, the effective neutron kerma factor ratios, i.e., oxygen tissue equivalent plastic and carbon to A-150 tissue equivalent plastic, were measured in the neutron beam. An A-150 tissue equivalent plastic to ICRU tissue absorbed dose conversion factor of 0.92 {+-} 0.04 was determined. Secondly, variations in the radiobiological effectiveness (RBE) in the beam were mapped by determining variations in two related quantities, e{sup *} and R, with field size and depth in tissue. Maximal variation in e{sup *} and R of 9% and 15% respectively were determined. Lastly, the feasibility of utilizing the boron neutron capture reaction on boron-10 to selectively enhance the tumor dose in the NTF beam was investigated.

Langen, K.M.

1997-12-01T23:59:59.000Z

302

Investigation of network-based information system model  

SciTech Connect

The objective of the DOE-LBNL summer student research program in computer and information sciences focused on investigating database- based http-based information architectures, and implementation of a prototype using DOE`s Comprehensive Epidemiologic Data Resource (CEDR) metadata or Epidemiology Guide content. We were successful in identifying the components of such an information system, and appropriate configuration given the requirements, and in implementing a prototype. This work comprised investigation of various information systems architectures or variants, evaluation and selection of various tools, products, and packages, preparation of databases, database content, output formats, and graphical (World Wide Web- compatible) interfaces. We successfully prepared and demonstrated network access to content from both the CEDR structured documentation and from the DOD Epidemiology Guides (site archive records).

Konrad, A.M.; Perez, M.; Rivera, J.; Rodriguez, Y.; Durst, M.J.; Merrill, D.W.; Holmes, H.H.

1996-09-01T23:59:59.000Z

303

Black Carbon Soot Impact on Snow Albedo: A Laboratory Investigation  

NLE Websites -- All DOE Office Websites (Extended Search)

Black Carbon Soot Impact on Snow Albedo: A Laboratory Investigation Black Carbon Soot Impact on Snow Albedo: A Laboratory Investigation Speaker(s): Odelle Hadley Date: August 13, 2009 - 12:00pm Location: 90-3075 This presentation examines the changing cryosphere and specifically the role of black carbon on the reflectivity of snow. Small amounts of black carbon in snow purportedly contribute to a reduction in snow albedo, contributing to regional climate change and early onset of melting. Our current research focuses on the connection between black carbon and albedo reduction. This presentation will describe our laboratory experiments wherein we make and characterize pure and contaminated snow and assess the black carbon snow albedo reduction as a function of black carbon mixing ratio and snow grain size. Experimental results are compared to verify or

304

Investigation of Laser Peening Effects on Hydrogen Charged Stainless Steels  

DOE Green Energy (OSTI)

Hydrogen-rich environments such as fuel cell reactors can exhibit damage caused by hydrogen permeation in the form of corrosion cracking by lowering tensile strength and decreasing material ductility. Coatings and liners have been investigated, but there were few shot-peening or laser peening studies referenced in the literature with respect to preventing hydrogen embrittlement. The surface compressive residual stress induced by laser peening had shown success in preventing stress corrosion cracking (SCC) for stainless steels in power plants. The question arose if the residual stresses induced by laser peening could delay the effects of hydrogen in a material. This study investigated the effect of laser peening on hydrogen penetration into metal alloys. Three areas were studied: laser peening, hydrogenation, and hydrogen detection. This study demonstrated that laser peening does not reduce the hydrogen permeation into a stainless steel surface nor does it prevent hydrogen embrittlement. The effect of laser peening to reduce hydrogen-assisted fatigue was unclear.

Zaleski, T M

2008-10-23T23:59:59.000Z

305

Investigation of formaldehyde and acetaldehyde sampling rate and ozone  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of formaldehyde and acetaldehyde sampling rate and ozone Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Title Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Publication Type Journal Article Year of Publication 2013 Authors Mullen, Nasim A., Marion L. Russell, Melissa M. Lunden, and Brett C. Singer Journal Atmospheric Environment Volume 80 Pagination 184-189 Date Published 12/2013 Keywords aldehyde; exposure; indoor air quality; passive sampler; residential Abstract This study investigated formaldehyde and acetaldehyde passive sampling rates and ozone interference for the DNPH-based Waters Sep-Pak XPoSure sampler. Previous studies have shown that ozone interferes with active sampling by this cartridge. Our study included one laboratory and six field experiments conducted in Northern California homes. Passive sampling rates of 1.10 ± 0.09 and 0.86 ± 0.10 mL/min determined for formaldehyde and acetaldehyde are lower than previously reported. In a controlled laboratory experiment there were small, statistically insignificant impacts of subsequent ozone exposure on formaldehyde and acetaldehyde mass passively collected on the samplers. This sampler is inexpensive, easy to deploy and to transport by mail, and has a high sampling capacity when used passively; it is suitable for a wide-range of monitoring applications. However, the passive sampling rate remains in question given the internally consistent, but different results obtained in our study and the previous study.

306

Laboratory Investigations of Low-Swirl Injectors Operating With Syngases  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigations of Low-Swirl Injectors Operating With Syngases Investigations of Low-Swirl Injectors Operating With Syngases Title Laboratory Investigations of Low-Swirl Injectors Operating With Syngases Publication Type Journal Article Year of Publication 2008 Authors Cheng, Robert K., and David Littlejohn Journal Proceedings of the Combustion Institute Type of Article Conference Paper: ASME Turbo Expo 2008: Power for Land Sea and Air Abstract The low-swirl injector (LSI) is a lean premixed combustion technology that has the potential for adaptation to fuel-flexible gas turbines operating on a variety of fuels. The objective of this study is to gain a fundamental understanding of the effect of syngas on the LSI flame behavior, the emissions and the flowfield characteristics for its adaptation to the combustion turbines in IGCC clean coal power plants. The experiments were conducted in two facilities. Open laboratory flames generated by a full size (6.35 cm) LSI were used to investigate the lean-blow off limits, emissions, and the flowfield characteristics. Verification of syngas operation at elevated temperatures and pressures were performed with a reduced scale (2.54 cm) LSI in a small pressurized combustion channel. The results show that the basic LSI design is amenable to burning syngases with up to 60% H2. Syngases with high H2 concentration have lower lean blow-off limits. From PIV measurements, the flowfield similarity behavior and the turbulent flame speeds of syngases flames are consistent with those observed in hydrocarbon and pure or diluted hydrogen flames. The NOx emissions from syngas flames show log-linear dependency on the adiabatic flame temperature and are comparable to those reported for the gaseous fuels reported previously. Successful firing of the reduced-scale LSI at 330 < T < 446o F and 8 atm verified the operability of this concept at gas turbine conditions.

307

An Investigation of the effect of graphite degradation on irreversible  

NLE Websites -- All DOE Office Websites (Extended Search)

An Investigation of the effect of graphite degradation on irreversible An Investigation of the effect of graphite degradation on irreversible capacity in lithium-ion cells. Title An Investigation of the effect of graphite degradation on irreversible capacity in lithium-ion cells. Publication Type Journal Article Year of Publication 2008 Authors Hardwick, Laurence J., Marek Marcinek, Leanne Beer, John B. Kerr, and Robert Kostecki Journal Electrochemical Society Volume 155 Start Page A442 Issue 6 Pagination A442-A447 Keywords chromatography, electrochemical electrodes, electrochemical impedance spectroscopy, Fourier transform spectra, graphite, infrared spectra, lithium, mass spectra, Raman spectra, scanning electron microscopy, secondary cells, sputtering, surface structure Abstract The effect of surface structural damage on graphitic anodes, commonly observed in tested Li-ion cells, was investigated. Similar surface structural disorder was artificially induced in Mag-10 synthetic graphite anodes using argon-ion sputtering. Raman microscopy, scanning electron microscopy, and Brunauer-Emmett-Teller measurements confirmed that Ar-ion sputtered Mag-10 electrodes display a similar degree of surface degradation as the anodes from tested Li-ion cells. Artificially modified Mag-10 anodes showed double the irreversible charge capacity during the first formation cycle compared to fresh unaltered anodes. Impedance spectroscopy and Fourier transform infrared spectroscopy on surface-modified graphite anodes indicated the formation of a thicker and slightly more resistive solid electrolyte interphase (SEI) layer. Gas chromatography/mass spectroscopy analysis of solvent extracts from the electrodes detected the presence of new compounds with Mw on the order of 1600gmol-1 for the surface-modified electrode with no evidence of elevated Mw species for the unmodified electrode. The structural disorder induced in the graphite during long-term cycling may be responsible for the slow and continuous SEI layer reformation, and consequently, the loss of reversible capacity due to the shift of lithium inventory in cycled Li-ion cells.

308

Geothermal chemistry/exploration investigations at Dixie Valley, Nevada  

DOE Green Energy (OSTI)

Dixie Valley geothermal field has continuously produced electric power since 1988. At the request of Oxbow Geothermal Corp. and the US Department of Energy, the authors have organized an inter-agency team of investigators to examine several topics of concern regarding management and behavior of the resource. These topics include scaling of the injection system, recharge of the reservoir, geochemical monitoring of the reservoir, and development of increased fumarolic activity north of the power plant.

Goff, F.; Bergfeld, D.; Counce, D. [Los Alamos National Lab., NM (United States); Janik, C.J. [Geological Survey (United States); Bruton, C.J.; Nimz, G. [Lawrence Livermore National Lab., CA (United States)

1998-12-01T23:59:59.000Z

309

Braidwood Leaking Fuel Root Cause Hot Cell Investigation  

Science Conference Proceedings (OSTI)

Since the beginning of 2003, an increase in the number of leakers in 17x17 optimized fuel assembly (OFA) plants have been observed, resulting in an increased fuel reliability rate. A comprehensive evaluation of plant data and an assessment of the most likely causes of the leakers suggested that leakage mechanisms for the current leakers could be different from those seen historically. Westinghouse identified this trend as a significant fuel performance issue and initiated an extensive investigation to ad...

2007-05-03T23:59:59.000Z

310

Power Transformer Failure Investigation and Root Cause Analysis  

Science Conference Proceedings (OSTI)

This report provides practical, step-by-step guidance to help utility personnel gather evidence and perform investigations on failed or retired high-voltage substation power transformers to assist in determining the cause of the transformers failure or the service condition of retired units.BackgroundHigh-voltage transformers are essential to the reliability of the power system, but many are aging and nearing the end of their design lives. Transformer ...

2012-12-12T23:59:59.000Z

311

Community fear of nonionizing radiation: a field investigation  

Science Conference Proceedings (OSTI)

Four children from the same school class developed cancer. Because of concern in the community, a field study designed to document levels of environmental, nonionizing radiation was undertaken. Two school sites were investigated, the one with the cluster of cases and the other without known cases of cancer. The measured values of nonionizing radiation at both sites were not different and were well below existing exposure standards.

Daley, M.L.; Morton, W.E.; Chartier, V.; Zajac, H.; Benitez, H.

1985-03-01T23:59:59.000Z

312

Investigating the Flame Microstructure in Type Ia Supernovae  

E-Print Network (OSTI)

We present a numerical model to study the behavior of thermonuclear flames in the discontinuity approximation. This model is applied to investigate the Landau-Darrieus instability under conditions found in Type Ia supernova explosions of Chandrasekhar mass white dwarfs. This is a first step to explore the flame microstructure in these events. The model reproduces Landau's linearized stability analysis in early stages of the flame evolution and the stabilization in a cellular flame structure in the nonlinear stage.

F. K. Roepke; W. Hillebrandt; J. C. Niemeyer

2002-04-02T23:59:59.000Z

313

NETL: Investigation on Flame Characteristics and Burner Operability Issues  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation on Flame Characteristics and Burner Operability Issues of Oxy-Fuel Combustion Investigation on Flame Characteristics and Burner Operability Issues of Oxy-Fuel Combustion Project No.: DE-FE0002402 NETL has partnered with the University of Texas at El Paso (UTEP) to investigate the characteristics of oxy-fuel flames and assess their impact on the operability of oxy-fuel combustion systems. The examination of fundamental flame characteristics data and related burner operability parameters are essential for designing and developing oxy-fuel combustion systems for new power plants and retrofitting existing power generation units. In an oxy-fuel system, coal is combusted in an enriched oxygen environment using pure oxygen diluted with recycled CO2 or water vapor (H2O), resulting in a flue stream consisting only of CO2 and H2O (no other co-contaminants) (Figure 1). Oxy-fuel combustion is promising for CCUS applications because water can be condensed out of the CO2/H2O flue stream to produce a relatively pure CO2 end product for capture. Oxy-fuel combustion and subsequent CO2 capture is currently being considered by the DOE's Innovations for Existing Plants Program as having the potential to meet the goal of 90 percent CO2 capture without increasing the cost of electricity more than 35 percent.

314

Study of investigation-derived waste management options. Master's thesis  

Science Conference Proceedings (OSTI)

USAF is dedicated to the clean up of past releases of hazardous substances at its bases under the Installation Restoration Program (IRP) . Clean up decisions are based upon data produced from investigations. Large amounts of waste may be derived from investigations. Investigation-derived waste (IDW), especially that with a hazardous component, may pose significant health protection and regulatory compliance problems if neglected. This study identifies the status and the need for improvement of IDW management to avoid those problems. Information on the background of IDW management was collected through a review of environmental laws, waste management regulations, and existing guidance. Practical IDW management information was gleaned from conversations with iRP managers at twelve USAF bases around the country. This study revealed that IDW management needs improvement. All bases acknowledged IDW concerns and have adopted various methods to deal with them. However, current methods appear to rely more upon expediency rather than permanence. This study showed that critical protection and compliance issues are being overlooked. Development of specific IDW management guidance may better assure that critical issues are addressed. Waste minimization, Waste management, Environmental management, Nonhazardous wastes, Hazardous material, Solid wastes.

Mountain, B.C.

1993-09-01T23:59:59.000Z

315

Investigation of the rank dependence of tar evolution  

SciTech Connect

The objective of this study are to develop an improved understanding of the process of coal tar evolution, its relationship to the structural characteristics of the parent coal, and the dependence of the chemical and physical properties of the tar products on the conditions of devolatilization. Data from this study are expected to allow hypothesis testing and refinements of coal devolatilization models relevant to the pulverized coal combustion process. A range of coal ranks, from a Texas lignite to a Pennsylvania anthracite, are employed in the investigation. In addition, a high temperature polymer, a polyimide, is utilized as an additional reference case. The polyimide serves as a truly polymeric reference material for examining the nitrogen evolution behavior of coal. The samples are subjected to elemental composition determination, infrared absorbance characterization, calorific value measurement, high temperature ash analysis, and maceral composition. Potential tar yields are determined by long hold time heated grid investigations of each coal at a final temperature and heating rate observed to maximize tar yields for the reference coal. Relative tar evolution kinetic behavior is determined by zero hold time heated grid investigations of each coal. 4 refs., 13 figs., 2 tabs.

Freihaut, J.D.; Proscia, W.M.

1990-01-01T23:59:59.000Z

316

Barchan dune corridors: field characterization and investigation of control parameters  

E-Print Network (OSTI)

The structure of the barchan field located between Tarfaya and Laayoune (Atlantic Sahara, Morocco) is quantitatively investigated and compared to that in La Pampa de la Joya (Arequipa, Peru). On the basis of field measurements, we show how the volume, the velocity and the output sand flux of a dune can be computed from the value of its body and horn widths. The dune size distribution is obtained from the analysis of aerial photographs. It shows that these fields are in a statistically homogeneous state along the wind direction and present a `corridor' structure in the transverse direction, in which the dunes have a rather well selected size. Investigating the possible external parameters controlling these corridors, we demonstrate that none among topography, granulometry, wind and sand flux is relevant. We finally discuss the dynamical processes at work in these fields (collisions and wind fluctuations), and investigate the way they could regulate the size of the dunes. Furthermore we show that the overall sand flux transported by a dune field is smaller than the maximum transport that could be reached in the absence of dunes, i.e. in saltation over the solid ground.

Hicham Elbelrhiti; Bruno Andreotti; Philippe Claudin

2006-09-06T23:59:59.000Z

317

Counter-Top Thermoacoustic Refrigerator- An Experimental Investigation  

SciTech Connect

Thermoacoustic phenomenon is a new alternative refrigeration technology. Though design and fabrication is complex for getting the desired effect, it is environmentally friendly and successful system showed that it is relatively easy to run compared to the traditional vapor compression refrigeration system. Currently, theories supporting the thermoacoustic refrigeration systems are yet to be comprehensive to make them commercially viable. Theoretical, experimental, and numerical studies are being done to address the thermodynamics-acoustics interactions. In this study, experimental investigations were completed to test the feasibility of the practical use of a thermoacoustic refrigerator in its counter-top form for future specific application. The system was designed and fabricated based on linear acoustic theory. Acoustic power was given by a loud speaker and thermoacoustic effects were measured in terms of the cooling effects produced at resonanance. Investigations showed that discrepancies between designed and working resonance frequency exist. Thermoacoutic cooling improved at a certain frequency, achieved when the working frequency was varied away from the design frequency. A cooling effect of 4.8 K below the ambient temperature of 23.3 deg. C was obtained from the counter-top thermoacoustic system. This system uses no refrigerants and no compressor to generate the cooling effect, a potential to be further investigated for a practical system.

Anwar, Mahmood; Ghazali, Normah Mohd [Department of Thermo-Fluids, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia Skudai 81310, Johor (Malaysia)

2010-06-28T23:59:59.000Z

318

Final work plan for targeted investigation at Inman, Kansas.  

SciTech Connect

In 1997, low levels of carbon tetrachloride (below the maximum contaminant level [MCL] of 5 {micro}g/L) were detected in groundwater at Inman, Kansas, by the Kansas Department of Health and Environment (KDHE). The 1997 KDHE sampling was conducted under the U.S. Department of Agriculture (USDA) private well sampling program. The Commodity Credit Corporation (CCC), a USDA agency, operated a grain storage facility in Inman from 1954 to 1965. Carbon tetrachloride is the contaminant of primary concern at sites associated with former CCC/USDA grain storage operations. Inman is located in southwest McPherson County, approximately 10 mi southwest of the city of McPherson (Figure 1.1). To determine whether the former CCC/USDA facility at Inman is a potential contaminant source and its possible relationship to the contamination in groundwater, the CCC/USDA has agreed to conduct an investigation at Inman, in accordance with the Intergovernmental Agreement between the KDHE and the Farm Service Agency of the USDA. For this work plan, Argonne compiled historical data related to the previous investigations and grain storage operations at Inman. Through a review of documents acquired from all available sources, other potential contaminant source areas (in addition to the former CCC/USDA facility) have been identified as (1) the commercial grain storage structures northwest of Inman, along the railroad right-of-way, and (2) small former private grain storage facilities west of Main Street and near the former CCC/USDA facility at the southern edge of Inman (Figure 1.2). Previous investigations and the potential source areas are discussed in Section 2.

LaFreniere, L. M.; Environmental Science Division

2007-11-05T23:59:59.000Z

319

Investigation of the heat pipe arrays for convective electronic cooling  

E-Print Network (OSTI)

A combined experimental and analytical investigation was conducted to evaluate a heat pipe convective cooling device consisting of sixteen small copper/water heat pipes mounted vertically in a 4x4 array 25.4 mm square. The analytical portion of the investigation focused on determination of the maximum heat transport capacity and the resistance of the individual heat pipes. The resistance of each beat pipe was found to be 2.51 K/Watt, or more than 3 times smaller than the resistance produced by a solid copper rod with the same dimensions. The maximum predicted heat rejection for the module was over 50 Watts, or a power density in excess of 7.75 Watts/CM2. In the experimental portion of the investigation, two different modules were tested. The first module utilized ten circular aluminum fins mounted on the condenser end of each heat pipe to enhance heat rejection, while the second contained only the sixteen copper/water heat pipes. The effects of flow velocity, input power, and base plate temperature on the overall thermal resistance and the heat rejection capacity were determined, as well as the pressure drop resulting from each module. The finned heat pipe array was found to have a lower overall thermal resistance and thus, a higher heat rejection capacity, but also resulted in a significantly larger pressure drop than the array without fins. The results of the heat pipe array experiments were also compared with experimental and empirical results obtained from flow over a flat plate 25.4 mm square.

Howard, Alicia Ann Harris

1993-01-01T23:59:59.000Z

320

LANL: Facility Focus, MST-6 Materials Surface Science Investigations Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

07-018 Spring 2007 07-018 Spring 2007 T he MST-6 Materials Surface Science Investigations Laboratory is home to a one-of-a-kind integrated instrument for surface science and materials research, allowing scientists at Los Alamos National Laboratory the unique opportunity to perform coordinated research using ultra-high vacuum surface measurements, in situ reactions, and materials synthesis tools. Housed in the Materials Science Laboratory, the surface science instrument features an ultra-clean integrated system for surface analysis and in situ surface modification, thin film deposition, and surface gas reactions. This integrated system is used for analytical surface science; materials electronic

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Investigation of efficiency optimization in free electron lasers  

SciTech Connect

The dynamics of trapped particles in the presence of the wiggler magnetic field and the electromagnetic radiation field in free electron lasers were investigated. From the results of computer simulations, it was found that, for a given set of parameters, the efficiency of energy extraction from the electron beam maximizes at a particular intensity of the electromagnetic radiation. Based on the physical argument of the dynamics of the trapped particles, a criterion which predicts accurately the optimum intensity of the electromagnetic radiation was obtained. (TFD)

Kwan, T.J.T.

1979-01-01T23:59:59.000Z

322

Photoelectrochemical investigation of a poly(ethylene oxide) cell  

SciTech Connect

The photoelectrochemical properties of cells based on the solid polymer electrolyte (SPE) poly(ethylene oxide)/NaSCN with Na2S/S as a redox species are investigated experimentally. The preparation of the SPE is described in detail. Current/voltage curves or voltage/time are shown for cells using p-InP/SPE/conducting-glass, n-GaAs/SPE/conducting-glass, and p-InP/SPE/n-CdS structures. It is concluded that practical cells based on SPE of this type will require increases in the ionic conductivity of poly(ethylene oxide). 13 references.

Sammells, A.F.; Ang, G.P.

1984-03-01T23:59:59.000Z

323

Investigation of Structural and Electronic Properties of Graphene Oxide  

SciTech Connect

The local atomic structure of graphene oxide has been probed using synchrotron radiations. Detailed investigations of recently proposed simplistic model of graphene oxide using x-ray absorption near edge spectroscopy have been performed. X-ray diffraction measurements and calculations indicate loss of coherence between graphene-like layers. However, larger in-plane structural coherence is understood to be present. Selected area electron diffraction measurements indicate the presence of graphitic regions in graphene oxide which is expected to produce interesting confinement effects in graphene oxide which could be important for the development of tunable electronic and photonic devices.

S Saxena; T Tyson; S Shukla; E Negusse; H Chen; J Bai

2011-12-31T23:59:59.000Z

324

Investigation of the nuetralino pair production at LHC  

E-Print Network (OSTI)

In this article, we investigate the Drell-Yan process of the light neutralino pair $\\widetilde{\\chi}_{i}^{0}\\widetilde{\\chi}_{j}^{0}$ ($i,j=1,2$) productions at proton-proton collisions and we present the general formulate for the differential cross sections. We conduct an extensive examination of the dependence of the total cross section of the subprocesses $q \\bar q \\to \\widetilde \\chi_{i}^{0}\\widetilde\\chi_{j}^{0}$ on the beam energy, on the mass of the squarks and also on the $M_2$ gaugino for the three extremely different scenarios. For all three cases, the outcomes are as follows. The dependence of the total cross section of the subprocesses $q \\bar q \\to \\widetilde \\chi_{i}^{0} \\widetilde \\chi_{j}^{0}$ on the beam energy is dominated by one of the subprocesses, $q \\bar q \\to \\widetilde \\chi_{1}^{0} \\widetilde \\chi_{2}^{0}$. On the other hand, the dependence of the total cross section of the subprocesses $q \\bar q \\to \\widetilde \\chi_{i}^{0} \\widetilde \\chi_{j}^{0}$ on the mass of the squarks is dominated by one of the subprocesses, $q \\bar q \\to \\widetilde \\chi_{1}^{0} \\widetilde \\chi_{2}^{0}$. We derive there from that our findings may lead to new insights relating to experimental investigations and these dependencies may be used as bases of an experimental research for the neutralino pair at LHC.

A. I. Ahmadov; I. Boztosun; R. Kh. Muradov; A. Soylu; E. A. Dadashov

2006-04-20T23:59:59.000Z

325

Investigation of breached depleted UF sub 6 cylinders  

Science Conference Proceedings (OSTI)

In June 1990, during a three-site inspection of cylinders being used for long-term storage of solid depleted UF{sub 6}, two 14-ton cylinders at Portsmouth, Ohio, were discovered with holes in the barrel section of the cylinders. An investigation team was immediately formed to determine the cause of the failures and their impact on future storage procedures and to recommend corrective actions. Subsequent investigation showed that the failures most probably resulted from mechanical damage that occurred at the time that the cylinders had been placed in the storage yard. In both cylinders evidence pointed to the impact of a lifting lug of an adjacent cylinder near the front stiffening ring, where deflection of cylinder could occur only by tearing the cylinder. The impacts appear to have punctured the cylinders and thereby set up corrosion processes that greatly extended the openings in the wall and obliterated the original crack. Fortunately, the reaction products formed by this process were relatively protective and prevented any large-scale loss of uranium. The main factors that precipitated the failures were inadequate spacing between cylinders and deviations in the orientations of lifting lugs from their intended horizontal position. After reviewing the causes and effects of the failures, the team's principal recommendation for remedial action concerned improved cylinder handling and inspection procedures. Design modifications and supplementary mechanical tests were also recommended to improve the cylinder containment integrity during the stacking operation. 4 refs., 2 figs.

DeVan, J.H.

1991-01-01T23:59:59.000Z

326

COMPUTATION AND SPECTROSCOPIC INVESTIGATION OF THE DTPA COMPLEXES  

SciTech Connect

The focus of understanding the thermodynamics of the TALSPEAK system are complicated. In the pH window of the TALSPEAK process there are three different DTPA species that are present at varying concentrations. Through computation modeling, each of the three species can be investigated individually and their individual contributions can be weighed based on their concentration in the system. The computational modeling was verified through Raman spectroscopy for the uncomplexed DTPA, and was in agreement of the computationally calculated spectra. Computational, the modeling was about to investigated the addition of a metal center (Nd{sup III}, Pu{sup III} and Am{sup III}). The structural features found in the free ligand at a given pH then provided a template to model the protonated M-DTPA structures to understand the critical structure and bonding features found upon ligand protonation. The metal center is not situated in the center of the square antiprism, but more towards the carboxylate chelates, i.e., electrostatic interactions are dictating complex formation. Given that the metal center has close proximity to the oxygen chelates, additional covalency should be expected especially when considering the covalent radii of O and N differs by 0.08 {angstrom}.

Bridges, N.; Roy, L.; Klug, C.

2012-08-02T23:59:59.000Z

327

Investigation of a bladder cancer cluster in northwestern Illinois  

SciTech Connect

Cancer maps from 1950 through 1979 revealed areas of high mortality from bladder cancer for both males and females in several northwestern Illinois counties. In order to further explore this excess, a bladder cancer incidence study was conducted in the eight counties comprising this region. Eligible cases were those first diagnosed with bladder cancer between 1978 and 1985. Age adjusted standardized incidence ratios were calculated for each county and for 97 zip codes within these counties. County results revealed no excesses. Zip code results indicated elevated risks in a few areas, but only two zip codes had significantly elevated results. One of these zip codes had a significant excess in males (standardized incidence ratio = 1.5) and females (standardized incidence ratio = 1.9). This excess was primarily confined to one town in this zip code, in which standardized incidence ratios were significantly elevated in males (1.7) and females (2.6). Further investigation revealed that one of four public drinking water wells in this town had been closed due to contamination; two wells were within a half mile (0.8 km) of a landfill site that had ceased operating in 1972. Tests of these two wells revealed traces of trichloroethylene, tetrachloroethylene, and other solvents. Further investigation of this cluster is discussed.

Mallin, K. (Illinois Cancer Council, Chicago (USA))

1990-07-01T23:59:59.000Z

328

Microdosimetric investigations at the Fast Neutron Therapy Facility at Fermilab  

Science Conference Proceedings (OSTI)

Microdosimetry was used to investigate three issues at the neutron therapy facility (NTF) at Fermilab. Firstly, the conversion factor from absorbed dose in A-150 tissue equivalent plastic to absorbed dose in ICRU tissue was determined. For this, the effective neutron kerma factor ratios, i.e. oxygen tissue equivalent plastic and carbon to A-150 tissue equivalent plastic, were measured in the neutron beam. An A-150 tissue equivalent plastic to ICRU tissue absorbed dose conversion factor of 0.92 {+-} 0.04 determined. Secondly, variations in the radiobiological effectiveness (RBE) in the beam were mapped by determining variations in two related quantities, e{sup *} and R, with field size and depth in tissue. Maximal variation in e{sup *} and R of 9% and 15% respectively were determined. Lastly, the feasibility of utilizing the boron neutron capture reaction on boron-10 to selectively enhance the tumor dose in the NTF beam was investigated. In the unmodified beam, a negligible enhancement for a 50 ppm boron loading was measured. To boost the boron dose enhancement to 3% it was necessary to change the primary proton energy from 66 MeV and to filter the beam by 90 mm of tungsten.

Langen, K.M.

1997-12-31T23:59:59.000Z

329

Field investigation at the Faultless Site Central Nevada Test Area  

DOE Green Energy (OSTI)

An evaluation of groundwater monitoring at non-Nevada Test Site underground nuclear test sites raised questions about the potential for radionuclide migration from the Faultless event and how to best monitor for such migration. With its long standing interest in the Faultless area and background in Nevada hydrogeology, the Desert Research Institute conducted a field investigation in FY92 to address the following issues: The status of chimney infilling (which determines the potential for migration); the best level(s) from which to collect samples from the nearby monitoring wells, HTH-1 and HTH-2; the status of hydraulic heads in the monitoring well area following records of sustained elevated post-shot heads. The field investigation was conducted from July 27 to 31 and August 4 to 7, 1992. Temperature and electrical conductivity logging were performed in HTH-1, HTH-2, and UC-1-P-2SR. Water samples were collected from HTH-1 and HTH-2. Lawrence Livermore National Laboratory (LLNL) also collected samples during the July trip, including samples from UC-1-P-2SR. This report presents the data gathered during these field excursions and some preliminary conclusions. Full interpretation of the data in light of the issues listed above is planned for FY93.

Chapman, J.B.; Mihevc, T.M.; Lyles, B.

1992-11-01T23:59:59.000Z

330

Final work plan : environmental site investigation at Sylvan Grove, Kansas.  

SciTech Connect

In 1998, carbon tetrachloride was found above the maximum contaminant level (MCL) of 5 {micro}g/L in groundwater from one private livestock well at Sylvan Grove, Kansas, by the Kansas Department of Health and Environment (KDHE). The 1998 KDHE sampling was conducted under the U.S. Department of Agriculture (USDA) private well sampling program. The Commodity Credit Corporation (CCC), a USDA agency, operated a grain storage facility in Sylvan Grove from 1954 to1966. Carbon tetrachloride is the contaminant of primary concern at sites associated with former CCC/USDA grain storage operations. Sylvan Grove is located in western Lincoln County, approximately 60 mi west of Salina (Figure 1.1). To determine whether the former CCC/USDA facility at Sylvan Grove is a potential contaminant source and its possible relationship to the contamination in groundwater, the CCC/USDA has agreed to conduct an investigation, in accordance with the Intergovernmental Agreement between the KDHE and the Farm Service Agency (FSA) of the USDA. This Work Plan presents historical data related to previous investigations, grain storage operations, local private wells and public water supply (PWS) wells, and local geologic and hydrogeologic conditions at Sylvan Grove. The findings from a review of all available documents are discussed in Section 2. On the basis of the analyses of historical data, the following specific technical objectives are proposed for the site investigation at Sylvan Grove: (1) Evaluate the potential source of carbon tetrachloride at the former CCC/USDA facility; (2) Determine the relationship of potential contamination (if present) at the former CCC/USDA facility to contamination identified in 1998 in groundwater samples from one private well to the west; and (3) Delineate the extent of potential contamination associated with the former CCC/USDA facility. The detailed scope of work is outlined in Section 3. The results of the proposed work will provide the basis for determining what future CCC/USDA actions may be necessary, with the ultimate goal of achieving classification of the Sylvan Grove site at no further action status. The proposed activities are to be performed on behalf of the CCC/USDA by the Environmental Science Division of Argonne National Laboratory, a nonprofit, multidisciplinary research center operated by the UChicago Argonne, LLC, for the U.S. Department of Energy. Argonne provides technical assistance to the CCC/USDA concerning environmental site characterization and remediation at former grain storage facilities. Argonne issued a Master Work Plan (Argonne 2002) that has been approved by the KDHE. The Master Work Plan describes the general scope of all investigations at former CCC/USDA facilities in Kansas and provides guidance for these investigations. That document should be consulted for the complete details of plans for work associated with the former CCC/USDA facility at Sylvan Grove.

LaFreniere, L. M. (Environmental Science Division)

2012-07-15T23:59:59.000Z

331

Experimental investigation of film cooling effectiveness on gas turbine blades  

E-Print Network (OSTI)

The hot gas temperature in gas turbine engines is far above the permissible metal temperatures. Advanced cooling technologies must be applied to cool the blades, so they can withstand the extreme conditions. Film cooling is widely used in modern high temperature and high pressure blades as an active cooling scheme. In this study, the film cooling effectiveness in different regions of gas turbine blades was investigated with various film hole/slot configurations and mainstream flow conditions. The study consisted of four parts: 1) effect of upstream wake on blade surface film cooling, 2) effect of upstream vortex on platform purge flow cooling, 3) influence of hole shape and angle on leading edge film cooling and 4) slot film cooling on trailing edge. Pressure sensitive paint (PSP) technique was used to get the conduction-free film cooling effectiveness distribution. For the blade surface film cooling, the effectiveness from axial shaped holes and compound angle shaped holes were examined. Results showed that the compound angle shaped holes offer better film effectiveness than the axial shaped holes. The upstream stationary wakes have detrimental effect on film effectiveness in certain wake rod phase positions. For platform purge flow cooling, the stator-rotor gap was simulated by a typical labyrinth-like seal. Delta wings were used to generate vortex and modeled the passage vortex generated by the upstream vanes. Results showed that the upstream vortex reduces the film cooling effectiveness on the platform. For the leading edge film cooling, two film cooling designs, each with four film cooling hole configurations, were investigated. Results showed that the shaped holes provide higher film cooling effectiveness than the cylindrical holes at higher average blowing ratios. In the same range of average blowing ratio, the radial angle holes produce better effectiveness than the compound angle holes. The seven-row design results in much higher effectiveness than the three-row design. For the trailing edge slot cooling, the effect of slot lip thickness on film effectiveness under the two mainstream conditions was investigated. Results showed thinner lips offer higher effectiveness. The film effectiveness on the slots reduces when the incoming mainstream boundary layer thickness decreases.

Gao, Zhihong

2007-08-01T23:59:59.000Z

332

Investigations of Biomass Pretreatment and Submerged Fixed-bed Fermentation  

E-Print Network (OSTI)

To improve the MixAlco process and biomass pretreatment, five studies were conducted. Three studies related to fermentation, whereas the other two investigated the effectiveness of shock tube pretreatment (STP) coupled with oxidative lime pretreatment (OLP). In the first study, the constant-selectivity assumption used in the continuum particle distribution model (CPDM) was determined to be invalid. During a 32-day batch fermentation, selectivity increased from 0.10 to 0.40 g acid/g non-acid volatile solid (NAVS) digested. Future revisions to CPDM should incorporate a non-constant selectivity term. In the second study, a revised procedure was developed to provide a more accurate determination of moisture content. Conventional drying at 105 degrees C allowed product acids to vaporize with water, which introduced errors. Using the revised procedure, calcium hydroxide or sodium hydroxide was added to samples at a concentration of 0.01 g base/g sample, which retained acids in the sample. The mass of additional retained material closely matched that of the additional retained acid. Three related studies involving biomass pretreatment were performed. In the first, recommended parameters for pretreating sugarcane bagasse with OLP and STP were determined. Recommended OLP parameters were 130 degrees C, 6.9-bar O2, and 2-h duration. The effects of solids concentration, liquid fill volume, particle size, type of shotgun shell, number of shocks, and pretreatment order were investigated. Liquid fill volume, particle size, type of shotgun shell, and pretreatment order were significant variables, whereas solids concentration and number of shocks were not. Recommended OLP parameters were used as a basis for an additional experiment. To simulate industrial-scale pile fermentation, fixed-bed batch fermentation of OLP + STP sugarcane bagasse was performed in 1-L PVC fermentors. Rubber mulch was used as a structural support material to prevent filter plugging, which had been reported in previous work. After 42 d, acid concentration reached 8 g/L with yield approximately 0.1 g acid/g NAVS fed. Poor fermentation performance was caused by short solid-liquid contact time and poor pH control. A third biomass pretreatment experiment investigated the potential of pretreated corn stover as a potential ruminant feed. Five samples (raw, OLP, STP, OLP + STP, and STP + OLP) were analyzed for composition and in vitro digestibility. STP followed by OLP increased neutral detergent fiber (NDF) digestibility from 49.3 to 79.0 g NDF digested/100 g NDF fed. On an organic matter basis, STP + OLP corn stover plus water-soluble extractives had a total digestible nutrients (TDN) of 74.9, nearly reaching corn grain at 88.1.

Meysing, Daniel

2011-12-01T23:59:59.000Z

333

ORNUTM-13249 DRAFT AN ECOLOGICAL INVESTIGATION OF A VANADIUM  

Office of Legacy Management (LM)

ORNUTM-13249 ORNUTM-13249 DRAFT AN ECOLOGICAL INVESTIGATION OF A VANADIUM AND URANIUM MILL TAILINGS SITE 1. G. Smith, M. J. Peterson, and M. G. Ryon Biological Monitoring and Abatement Program Environmental Sciences Division Oak RidgeNational Laboratory Oak Ridge, Tennessee May 1996 Prepared for Gretchen A. Pierce Healthand Safety Research Division Environmental Technology Section Oak RidgeNational Laboratory GrandJunction, Colorado Prepared by the Environmental Sciences Division Oak RidgeNational Laboratory Oak Ridge, Tennessee 37831 Managed by LOCKHEED MARTIN ENERGY RESEARCH CORP. for the U. S. DEPARTMENT OF ENERGY under contract DE-AC05-960R22464 I. INTRODUCTION From 1942 through 1946, the Vanadium Corporation of America operated a vanadium and uranium mill in Monticello, Utah (Rust Geotech 1995a). In 1948, the U. S. Atomic Energy Commission (AEC) purchased the mill site

334

Mr. Harold Snyder, Chief Discovery and Investigation Branch  

Office of Legacy Management (LM)

Ofll s' Ofll s' :y 1: ,' :*,; / c- tii; 1 ;q' (/. 4 L Department of Energy Washington, D .C. 20545 Mr. Harold Snyder, Chief Discovery and Investigation Branch Hazardous Site Control Division Administration for Solid Waste and Emergency Response U.S. Environmental Protection Agency 401 M Street Washington, D.C. 20460 Dear Mr. Snyder: The Department of Energy (DOE) radiological survey at the former Horizons, Inc. facility at 2909 East 79th Street in Cleveland, Ohio, performed in 1977, indicated that levels of residual radioactive materials and associated radiation levels were in excess of those used by DOE to determine if a site requires remedial action. The radioactive contamination and elevated radiation levels on the site were found, for the most part, in storage areas, in drains, and under floors. These data did

335

Geotechnical aspects of investigations at Stripa on radioactive waste isolation  

SciTech Connect

Access to a granitic rock mass in an iron ore mine in Sweden has provided a unique opportunity for a series of investigations on problems involved in geologic storage of radioactive waste. Important results have been obtained that would not have emerged if these experiments had not been carried out underground at depths comparable with those envisaged for an actual repository. It was observed that as the rock mass was heated, the temperature variations over time and space could be reasonably well predicted using available theory and appropriate values of material properties. However, because the rock is fractured, predicting the thermochenical behavior is much more involved. The role of the discontinuities is a key factor and is not yet well understood. The fracture network is also the dominant factor in controlling rock mass permeability. A new method of measuring average permeability on a very large scale is reported.

Witherspoon, P.A.

1981-08-01T23:59:59.000Z

336

Theoretical investigations of two Si-based spintronic materials  

SciTech Connect

Two Si-based spintronic materials, a Mn-Si digital ferromagnetic heterostructure ({delta}-layer of Mn doped in Si) with defects and dilutely doped Mn{sub x}Si{sub 1-x} alloy are investigated using a density-functional based approach. We model the heterostructure and alloy with a supercell of 64 atoms and examine several configurations of the Mn atoms. We find that 25% substitutional defects without vacancies in the {delta} layer diminishes half metallicity of the DFH substantially. For the alloy, the magnetic moment M ranges from 1.0-9.0 {mu}{sub B}/unit-cell depending on impurity configuration and concentration. Mn impurities introduce a narrow band of localized states near E{sub F}. These alloys are not half metals though their moments are integer. We explain the substantially different magnetic moments.

Fong, C Y; Snow, R; Shaughnessy, M; Pask, J E; Yang, L H

2007-08-03T23:59:59.000Z

337

Mr. Harold Snyder Chief, Discovery and Investigations Branch  

Office of Legacy Management (LM)

Harold Snyder Harold Snyder Chief, Discovery and Investigations Branch Hazardous Site Control Division Administration for Solid Waste and Emergency Response U. S. Environmental Protection Agency 401 M Street, S. W. Washington, D. C. 70460 Dear Mr. Snyder: The Department of Energy (DDE) has conducted a radiological survey at the Conserv Corporation (The former Virginia-Carolina Chemical Corporation), Nichols, Florida. This survey indicated that levels of residual radioactive material and associated radiation levels at the sfte are in excess c?f those used by DOE to determine if a site requires remedial actfon. The data did not indicate that, under the current use of the site, there was any hazard to the workers or the general public. However, changes fn site use or modifications to the facility could'possibly result

338

COLUMBIA RADIATION LABORATORY RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING  

NLE Websites -- All DOE Office Websites (Extended Search)

iVP-^"^^? iVP-^"^^? COLUMBIA RADIATION LABORATORY RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING THE USEFUL RANGE OF THE ELECTROMAGNETIC SPECTRUM Special Technical Report Signal Corps Contract DA-36-039 SC-64630 DA Project No. 3-99-10-022 SC Project No. 102B U. S. Army Laboratory Procurement Office Signal Corps Supply Agency Fort Monmouth, New Jersey The Trustees of Columbia University in the City of New York Box 6, Low Memorial Library New York 27, New York March 1, 1956 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. COLUMBIA RADIATION LABORATORY Collected Papers on the AAASER (Microwave Amplification by Stimulated Emission of Radiation) Special Technical Report

339

Environment/Health/Safety (EHS): Performing Injury Investigations  

NLE Websites -- All DOE Office Websites (Extended Search)

Injury Review & Analysis Injury Review & Analysis Investigation Team Roles Data Gathering Personnel Time Space Activity Hazards Work Authorizations Equipment Human Factors Slips, Trips, & Falls Ergonomics ISM Analysis Core Func./Guiding Princ. ISM Builder Examples Corrective Action Dev. CHESS Login CHESS User's Manual Accident Statistics Occupational Injury and Illness Review Paul Alivisatos photo Lab Director Paul Alivisatos shares guiding principles to be used during incident anlayses. This tutorial introduces the LBNL Injury Review Program and provides a 'toolkit' that to help you in the injury review process. The tool kit includes tools for data gathering, ISM analysis, and corrective action development. LBNL employees must report report all work-related injuries or illnesses to their supervisor and Health Services. A work-related injury (or

340

NETL: News Release - New Projects to Investigate Smart Drilling Options  

NLE Websites -- All DOE Office Websites (Extended Search)

February 20, 2004 February 20, 2004 New Projects to Investigate "Smart Drilling" Options Promise Lower Cost, More Reliable Gas Drilling Two additional projects have been selected under a Department of Energy solicitation designed to advance performance when drilling for natural gas. The projects are a key component of the Department's gas exploration and production research program, and support the President's National Energy Policy, which calls for boosting domestic production of natural gas to ensure an adequate future supply at reasonable prices. With shallow and conventional natural gas resources in the United States being depleted, drillers must reach for gas miles below the earth's surface, where temperatures run up to 450 EF and pressures are hundreds of times greater than atmospheric pressure. "Smart drilling" options can increase productivity, improve drilling safety, and lower costs when drilling for these hard-to-reach deep gas supplies.

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Mr. Harold Snyder Chief, Discovery and Investigations Branch  

Office of Legacy Management (LM)

. 20545 . 20545 FEB 2 7 1985 Mr. Harold Snyder Chief, Discovery and Investigations Branch Hazardous Site Control Division Administration for Solid Waste and Emergency Response U. S. Environmental Protection Agency 401 M Street, S. W. Washington, D. C. 20460 Dear Mr. Snyder: The Department of Olin Corporation, Joliet, Illinois. Energy (DOE) has conducted a radiological survey at the Chemicals Group (The former Blockson Chemical Company), This survey indicated that levels of residual radioactive material and associated radiation levels at the site are in excess of those used by DOE to determine if a site requires remedial action. The data did not indicate that, under the current use of the site, there was any hazard to the workers or the general public. However,

342

Numerical investigation of recirculation in the UTSI MHD combustor  

DOE Green Energy (OSTI)

Numerical studies were carried out to investigate the gross structure of flow in cylindrical combustors. The combustor configurations studied are variations of a working design used at the University of Tennessee Space Institute to burn pulverized coal at temperatures in excess of 3000K for generation of a plasma feeding a magnetohydrodynamic channel. The numerical studies were conducted for an isothermal fluid; the main objective of the calculations was to study the effect of the oxidant injection pattern on the gross structure of recirculating flows within the combustor. The calculations illustrate the basic features of the flow in combustors of this type and suggest implications for the injection of coal and oxidizer in this type of combustor.

Schulz, R.J.; Lee, J.J.; Giel, T.V. Jr.

1983-09-01T23:59:59.000Z

343

Fe/V Redox Flow Battery Electrolyte Investigation and Optimization  

Science Conference Proceedings (OSTI)

Recently invented Fe/V redox flow battery (IVBs) system has attracted more and more attentions due to its long-term cycling stability. In this paper, the factors (such as compositions, state of charge (SOC) and temperatures) influencing the stability of electrolytes in both positive and negative half-cells were investigated by an extensive matrix study. Thus an optimized electrolyte, which can be operated in the temperature ranges from -5oC to 50oC without any precipitations, was identified. The Fe/V flow cells using the optimized electrolytes and low-cost membranes exhibited satisfactory cycling performances at different temperatures. The efficiencies, capacities and energy densities of flow batteries with varying temperatures were discussed in detail.

Li, Bin; Li, Liyu; Wang, Wei; Nie, Zimin; Chen, Baowei; Wei, Xiaoliang; Luo, Qingtao; Yang, Zhenguo; Sprenkle, Vincent L.

2013-05-01T23:59:59.000Z

344

Investigations of biological processes in Austrian MBT plants  

SciTech Connect

Mechanical biological treatment (MBT) of municipal solid waste (MSW) has become an important technology in waste management during the last decade. The paper compiles investigations of mechanical biological processes in Austrian MBT plants. Samples from all plants representing different stages of degradation were included in this study. The range of the relevant parameters characterizing the materials and their behavior, e.g. total organic carbon, total nitrogen, respiration activity and gas generation sum, was determined. The evolution of total carbon and nitrogen containing compounds was compared and related to process operation. The respiration activity decreases in most of the plants by about 90% of the initial values whereas the ammonium release is still ongoing at the end of the biological treatment. If the biogenic waste fraction is not separated, it favors humification in MBT materials that is not observed to such extent in MSW. The amount of organic carbon is about 15% dry matter at the end of the biological treatment.

Tintner, J. [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Muthgasse 107, 1190 Vienna (Austria); Smidt, E., E-mail: ena.smidt@boku.ac.a [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Muthgasse 107, 1190 Vienna (Austria); Boehm, K.; Binner, E. [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Muthgasse 107, 1190 Vienna (Austria)

2010-10-15T23:59:59.000Z

345

A DFT investigation of methanolysis and hydrolysis of triacetin  

E-Print Network (OSTI)

The thermodynamic and kinetic aspects of the methanolysis and hydrolysis reactions of glycerol triacetate or triacetin, a model triacylglycerol compound, were investigated by using Density Functional Theory (DFT) at the B3LYP/6-31++G(d,p) level of calculation. Twelve elementary steps of triacetin methanolysis were studied under acid-catalyzed and base-catalyzed conditions. The mechanism of acid-catalyzed methanolysis reaction which has not been reported yet for any esters was proposed. The effects of substitution, methanolysis/hydrolysis position, solvent and face of nucleophilic attack on the free energy of reaction and activation energy were examined. The prediction confirmed the facile position at the middle position of glycerol observed by NMR techniques. The calculated activation energy and the trends of those factors agree with existing experimental observations in biodiesel production.

Limpanuparb, Taweetham; Tantirungrotechai, Yuthana; 10.1016/j.theochem.2010.05.022

2012-01-01T23:59:59.000Z

346

Investigation of multi-layer thin films for energy storage.  

DOE Green Energy (OSTI)

We investigate here the feasibility of increasing the energy density of thin-film capacitors by construction of a multi-layer capacitor device through ablation and redeposition of the capacitor materials using a high-power pulsed ion beam. The deposition experiments were conducted on the RHEPP-1 facility at Sandia National Laboratories. The dielectric capacitor filler material was a composition of Lead-Lanthanum-Zirconium-Titanium oxide (PLZT). The energy storage can be increased by using material of intrinsically high dielectric constant, and constructing many thin layers of this material. For successful device construction, there are a number of challenging requirements including correct stoichiometric and crystallographic composition of the deposited PLZT. This report details some success in satisfying these requirements, even though the attempt at device manufacture was unsuccessful. The conclusion that 900 C temperatures are necessary to reconstitute the deposited PLZT has implications for future manufacturing capability.

Renk, Timothy Jerome; Monson, Todd

2009-01-01T23:59:59.000Z

347

Experimental investigation of a solar desiccant cooling installation  

Science Conference Proceedings (OSTI)

Desiccant cooling is a technique based on evaporative cooling and air dehumidification using desiccant regenerated by thermal energy. It is particularly interesting when it is driven by waste or solar heat making this technique environmentally friendly. In this paper, an experimental investigation is carried on a desiccant air handling unit powered by vacuum-tube solar collectors. First, the components are studied under various operating conditions. Then overall performance of the installation is evaluated over a day for a moderately humid climate with regeneration solely by solar energy. In these conditions the overall efficiency of the solar installation is 0.55 while the thermodynamic coefficient of performance is 0.45 and the performance indicator based on the electrical consumption is 4.5. Finally, the impact of outside and regeneration conditions on the performance indicators is studied. (author)

Bourdoukan, P.; Wurtz, E. [LOCIE Laboratoire Optimisation de la Conception et Ingenierie de l'Environnement, Campus Scientifique Universite de Savoie, 73376 Le Bourget du Lac (France); Joubert, P. [LEPTIAB Laboratoire d'Etude des Phenomenes de Transfert et de l'Instantaneite Agro-Industrie et Batiment Pole Sciences et Technologies, Universite La Rochelle, Avenue Marillac 17000 La Rochelle (France)

2009-11-15T23:59:59.000Z

348

Experimental investigation of the trigger problem in magnetic reconnection  

Science Conference Proceedings (OSTI)

Magnetic reconnection releases magnetic energy not only in steady state, but also in time-dependent and often explosive events. Here, we investigate the trigger mechanism for this explosive release by using a toroidal experiment in the strong guide-field regime. We observe spontaneous reconnection events with exponentially growing reconnection rates, and we characterize the full 3D dynamics of these events using multiple internal probes. The reconnection is asymmetric: it begins at one toroidal location and propagates around in both directions. The spontaneous onset is facilitated by an interaction between the x-line current channel and a global mode, which appears in the electrostatic potential. It is this mode which breaks axisymmetry and enables a localized decrease in x-line current. We apply a simple model - which relies on ion polarization currents for current continuity - to reproduce the exponential growth and compute the growth rate. The result agrees well with the experimental growth rate.

Katz, Noam; Egedal, Jan; Fox, Will; Le, Ari; Vrublevskis, Arturs; Bonde, Jeff [Department of Physics/Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2011-05-15T23:59:59.000Z

349

Investigation of the feasibility of deep microborehole drilling  

Science Conference Proceedings (OSTI)

Recent advances in sensor technology, microelectronics, and telemetry technology make it feasible to produce miniature wellbore logging tools and instrumentation. Microboreholes are proposed for subterranean telemetry installations, exploration, reservoir definition, and reservoir monitoring this assumes that very small diameter bores can be produced for significantly lower cost using very small rigs. A microborehole production concept based on small diameter hydraulic or pneumatic powered mechanical drilling, assemblies deployed on coiled tubing is introduced. The concept is evaluated using, basic mechanics and hydraulics, published theories on rock drilling, and commercial simulations. Small commercial drill bits and hydraulic motors were selected for laboratory scale demonstrations. The feasibility of drilling deep, directional, one to two-inch diameter microboreholes has not been challenged by the results to date. Shallow field testing of prototype systems is needed to continue the feasibility investigation.

Dreesen, D.S. [Los Alamos National Lab., NM (United States); Cohen, J.H. [Maurer Engineering, Inc., Houston, TX (United States)

1997-01-01T23:59:59.000Z

350

Investigation of saliva of patients with periodontal disease using NAA  

SciTech Connect

In this study the non-stimulated whole saliva of 26 healthy subjects (mean age 33.9 {+-} 11.0 years, range: 26 to 49 years) and 11 patients with periodontal disease (mean age 41.7 {+-} 11.5 years; range 29 to 55 years) was investigated using Neutron Activation Analysis (NAA) technique. The samples were obtained from donors at Sao Paulo city (Brazil). The analyses were performed in the nuclear reactor IEA-R1 (3.5-4.5MW, pool type) at IPEN/CNEN-SP (Brazil). Considerable changes in Ca and S saliva's level were identified in patients with periodontal disease suggesting they can be used as monitors of periodontal diseases.

Zamboni, C. B.; Metairon, S.; Medeiros, I. M. M. A. [Instituto de Pesquisas Energeticas e Nucleares, IPEN - CNEN/SP Av. Professor Lineu Prestes 2242- 05508-000 Sao Paulo, SP (Brazil); Lewgoy, H. R. [Universidade Anhanguera Bandeirante, UNIBAN R. Maria Candida, 1813, Bloco G / 6o andar - 02071-013 Sao Paulo, SP (Brazil)

2013-05-06T23:59:59.000Z

351

Age Dating of Mixed SNM--Preliminary Investigations  

SciTech Connect

Recently we investigated the nuclear forensics problem of age determination for mixed special nuclear material (SNM). Through limited computational mixing experiments and interactive age analysis, it was observed that age dating results are generally affected by the mixing of samples with different assays or even by small radioactive material contamination. The mixing and contamination can be detected through interactive age analysis, a function provided by the Decay Interaction, Visualization and Analysis (DIVA) software developed by NSTec. It is observed that for mixed SNM with two components, the age estimators typically fall into two distinct clusters on the time axis. This suggests that averaging or other simple statistical methods may not always be suitable for age dating SNM mixtures. Instead, an interactive age analysis would be more suitable for age determination of material components of such SNM mixtures. This work was supported by the National Center for Nuclear Security (NCNS).

Yuan, D., Guss, P. P., Yfantis, E., Klingensmith, A., Emer, D.

2011-12-01T23:59:59.000Z

352

Morphological investigations of fibrogenic action of Estonian oil shale dust  

SciTech Connect

A review of morphological investigations carried out to clarify the pathogenicity of industrial dust produced in the mining and processing of Estonian oil shale is given. Histological examination of lungs of workers in the oil shale industry taken at necropsies showed that the inhalation of oil shale dust over a long period (more than 20 years) may cause the development of occupational pneumoconiotic changes in oil shale miners. The pneumoconiotic process develops slowly and is characterized by changes typical of the interstitial form of pneumoconiotic fibrosis in the lungs. Emphysematous changes and chronic bronchitis also occur. The average chemical content of oil shale as well as of samples of oil shale dust generated during mining and sorting procedures is given. The results of experiments in white rats are presented; these studies also indicate a mild fibrogenic action of Estonian oil shale dust.

Kung, V.A.

1979-06-01T23:59:59.000Z

353

Summary of multi-core hardware and programming model investigations  

Science Conference Proceedings (OSTI)

This report summarizes our investigations into multi-core processors and programming models for parallel scientific applications. The motivation for this study was to better understand the landscape of multi-core hardware, future trends, and the implications on system software for capability supercomputers. The results of this study are being used as input into the design of a new open-source light-weight kernel operating system being targeted at future capability supercomputers made up of multi-core processors. A goal of this effort is to create an agile system that is able to adapt to and efficiently support whatever multi-core hardware and programming models gain acceptance by the community.

Kelly, Suzanne Marie; Pedretti, Kevin Thomas Tauke; Levenhagen, Michael J.

2008-05-01T23:59:59.000Z

354

Experimental investigation of creep behavior of reactor vessel lower head  

SciTech Connect

The objective of the USNRC supported Lower Head Failure (LHF) Experiment Program at Sandia National Laboratories is to experimentally investigate and characterize the failure of the reactor pressure vessel (RPV) lower head due to the thermal and pressure loads of a severe accident. The experimental program is complemented by a modeling program focused on the development of a constitutive formulation for use in standard finite element structure mechanics codes. The problem is of importance because: lower head failure defines the initial conditions of all ex-vessel events; the inability of state-of-the-art models to simulate the result of the TMI-II accident (Stickler, et al. 1993); and TMI-II results suggest the possibility of in-vessel cooling, and creep deformation may be a precursor to water ingression leading to in-vessel cooling.

Chu, T.Y.; Pilch, M.; Bentz, J.H. [Sandia National Labs., Albuquerque, NM (United States); Behbahani, A. [NRC, Washington, DC (United States)

1998-03-01T23:59:59.000Z

355

DIAGNOSTIC TOOLS FOR BEAM HALO INVESTIGATION IN SNS LINAC  

Science Conference Proceedings (OSTI)

Uncontrolled beam loss is a major concern in the operation of a high intensity hadron linac. A low density cloud of particles with large oscillation amplitudes, so called halo, can form around the dense regular beam core. This halo can be a direct or indirect cause of beam loss. There is experimental evidence of halo growing in the SNS linac and limiting the further reduction of beam loss. A set of tools is being developed for detecting of the halo and investigating its origin and dynamics. The set includes high resolution emittance measurements in the injector, laser based emittance measurements at 1 GeV, and high resolution profile measurements along the linac. We will present our experience with useful measurement techniques and data analysis algorithms.

Aleksandrov, Alexander V [ORNL; Blokland, Willem [ORNL; Liu, Yun [ORNL; Long, Cary D [ORNL; Zhukov, Alexander P [ORNL

2012-01-01T23:59:59.000Z

356

Quantum Discord for Investigating Quantum Correlations without Entanglement in Solids  

E-Print Network (OSTI)

Quantum systems unfold diversified correlations which have no classical counterparts. These quantum correlations have various different facets. Quantum entanglement, as the most well known measure of quantum correlations, plays essential roles in quantum information processing. However, it has recently been pointed out that quantum entanglement cannot describe all the nonclassicality in the correlations. Thus the study of quantum correlations in separable states attracts widely attentions. Herein, we experimentally investigate the quantum correlations of separable thermal states in terms of quantum discord. The sudden change of quantum discord is observed, which captures ambiguously the critical point associated with the behavior of Hamiltonian. Our results display the potential applications of quantum correlations in studying the fundamental properties of quantum system, such as quantum criticality of non-zero temperature.

Rong, Xing; Jin, Fangzhou; Geng, Jianpei; Feng, Pengbo; Xu, Nanyang; Wang, Ya; Ju, Chenyong; Shi, Mingjun; Du, Jiangfeng

2012-01-01T23:59:59.000Z

357

Investigating The Use Of Ultrasound For Evaluating Aging Wiring Insulation  

E-Print Network (OSTI)

This paper reviews our initial efforts to investigate the use of ultrasound to evaluate wire insulation. Our initial model was a solid conductor with heat shrink tubing applied. In this model, various wave modes were identified. Subsequently, several aviation classes of wires (MIL-W81381, MIL-W-22759/34, and MIL-W-22759/87) were measured. The wires represented polyimide and ethylene-tetraflouroethylene insulations, and combinations of polyimide and flouropolymer plastics. Wire gages of 12, 16, and 20 AWG sizes were measured. Finally, samples of these wires were subjected to high temperatures for short periods of time to cause the insulation to degrade. Subsequent measurements indicated easily detectable changes.

Eric I. Madaras; Robert F. Anastasi

2001-01-01T23:59:59.000Z

358

MULTI-AGENCY RADIATION SURVEY AND SITE INVESTIGATION MANUAL  

NLE Websites -- All DOE Office Websites (Extended Search)

MULTI-AGENCY MULTI-AGENCY RADIATION SURVEY AND SITE INVESTIGATION MANUAL (MARSSIM) NUREG-1575, Rev. 1 EPA 402-R-97-016, Rev. 1 Rev. 1 AUGUST 2000 REVISION 1 DOE/EH-0624, ABSTRACT The MARSSIM provides information on planning, conducting, evaluating, and documenting building surface and surface soil final status radiological surveys for demonstrating compliance with dose or risk-based regulations or standards. The MARSSIM is a multi-agency consensus document that was developed collaboratively by four Federal agencies having authority and control over radioactive materials: Department of Defense (DOD), Department of Energy (DOE), Environmental Protection Agency (EPA), and Nuclear Regulatory Commission (NRC). The MARSSIM's objective is to describe a consistent approach for planning, performing, and

359

FIELD INVESTIGATION AT THE FAULTLESS SITE CENTRAL NEVADA TEST  

NLE Websites -- All DOE Office Websites (Extended Search)

FIELD FIELD INVESTIGATION AT THE FAULTLESS SITE CENTRAL NEVADA TEST AREA DOEINV/10845--T3 DE93 005915 by JennyB. Chapman, Thdd M. Mihevc and Brad Lyles Water Resources Center Desert Research Institute DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom- mendation, or favoring

360

Investigation of transverse collective flow of intermediate mass fragments  

SciTech Connect

The transverse flow of intermediate mass fragments (IMFs) has been investigated for the 35 MeV/u {sup 70}Zn+{sup 70}Zn, {sup 64}Zn+{sup 64}Zn, and {sup 64}Ni+{sup 64}Ni systems. A transition from the IMF transverse flow strongly depending on the mass of the system, in the most violent collisions, to a dependence on the charge of the system, for the peripheral reactions, is shown. This transition was shown to be sensitive to the density dependence of the symmetry energy using the antisymmetrized molecular-dynamics model. The results present an observable, the IMF transverse flow, that can be used to probe the nuclear equation of state. Comparison with the simulation demonstrated a preference for a stiff density dependence of the symmetry energy.

Kohley, Z.; May, L. W.; Wuenschel, S.; Soisson, S. N.; Stein, B. C.; Yennello, S. J. [Chemistry Department, Texas A and M University, College Station, Texas 77843 (United States); Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States); Bonasera, A. [Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States); Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare, I-95123 Catania (Italy); Hagel, K.; Tripathi, R.; Wada, R.; Shetty, D. V.; Galanopoulos, S.; Smith, W. B. [Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States); Souliotis, G. A. [Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States); Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Athens GR-15771 (Greece); Mehlman, M. [Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States); Physics and Astronomy Department, Texas A and M University, College Station, Texas 77843 (United States)

2010-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Investigation of residential central air conditioning load shapes in NEMS  

SciTech Connect

This memo explains what Berkeley Lab has learned about how the residential central air-conditioning (CAC) end use is represented in the National Energy Modeling System (NEMS). NEMS is an energy model maintained by the Energy Information Administration (EIA) that is routinely used in analysis of energy efficiency standards for residential appliances. As part of analyzing utility and environmental impacts related to the federal rulemaking for residential CAC, lower-than-expected peak utility results prompted Berkeley Lab to investigate the input load shapes that characterize the peaky CAC end use and the submodule that treats load demand response. Investigations enabled a through understanding of the methodology by which hourly load profiles are input to the model and how the model is structured to respond to peak demand. Notably, it was discovered that NEMS was using an October-peaking load shape to represent residential space cooling, which suppressed peak effects to levels lower than expected. An apparent scaling down of the annual load within the load-demand submodule was found, another significant suppressor of the peak impacts. EIA promptly responded to Berkeley Lab's discoveries by updating numerous load shapes for the AEO2002 version of NEMS; EIA is still studying the scaling issue. As a result of this work, it was concluded that Berkeley Lab's customary end-use decrement approach was the most defensible way for Berkeley Lab to perform the recent CAC utility impact analysis. This approach was applied in conjunction with the updated AEO2002 load shapes to perform last year's published rulemaking analysis. Berkeley Lab experimented with several alternative approaches, including modifying the CAC efficiency level, but determined that these did not sufficiently improve the robustness of the method or results to warrant their implementation. Work in this area will continue in preparation for upcoming rulemakings for the other peak coincident end uses, commercial air conditioning and distribution transformers.

Hamachi LaCommare, Kristina; Marnay, Chris; Gumerman, Etan; Chan, Peter; Rosenquist, Greg; Osborn, Julie

2002-05-01T23:59:59.000Z

362

An investigation of synthetic fuel production via chemical looping  

Science Conference Proceedings (OSTI)

Producing liquid hydrocarbon fuels with a reduced greenhouse gas emissions profile would ease the transition to a carbon-neutral energy sector with the transportation industry being the immediate beneficiary followed by the power industry. Revolutionary solutions in transportation, such as electricity and hydrogen, depend on the deployment of carbon capture and storage technologies and/or renewable energy systems. Additionally, high oil prices may increase the development of unconventional sources, such as tar sands, that have a higher emissions profile. One process that is gaining interest is a system for producing reduced carbon fuels though chemical looping technologies. An investigation of the implications of such a process using methane and carbon dioxide that is reformed to yield methanol has been done. An important aspect of the investigation is the use of off-the-shelf technologies to achieve the results. The ability of the process to yield reduced emissions fuels depends on the source for the feed and process heat. For the range of conditions considered, the emissions profile of methanol produced in this method varies from 0.475 to 1.645 moles carbon dioxide per mole methanol. The thermal load can be provided by methane, coal or carbon neutral (biogas). The upper bound can be lowered to 0.750 by applying CCS and/or using nonfossil heat sources for the reforming. The process provides an initial pathway to incorporate CO{sub 2} into fuels independent of electrolytic hydrogen or developments in other sectors of the economy. 22 refs., 1 fig., 3 tabs.

Frank Zeman; Marco Castaldi [Columbia University, New York, NY (United States). Department of Earth and Environmental Engineering

2008-04-15T23:59:59.000Z

363

Field site investigation: Effect of mine seismicity on groundwater hydrology  

Science Conference Proceedings (OSTI)

The results of a field investigation on the groundwater-hydrologic effect of mining-induced earthquakes are presented in this report. The investigation was conducted at the Lucky Friday Mine, a silver-lead-zinc mine in the Coeur d`Alene Mining District of Idaho. The groundwater pressure in sections of three fracture zones beneath the water table was monitored over a 24-mo period. The fracture zones were accessed through a 360-m-long inclined borehole, drilled from the 5,700 level station of the mine. The magnitude, source location, and associated ground motions of mining-induced seismic events were also monitored during the same period, using an existing seismic instrumentation network for the mine, augmented with additional instruments installed specifically for the project by the center for Nuclear Waste Regulatory Analyses (CNWRA). More than 50 seismic events of Richter magnitude 1.0 or larger occurred during the monitoring period. Several of these events caused the groundwater pressure to increase, whereas a few caused it to decrease. Generally, the groundwater pressure increased as the magnitude of seismic event increased; for an event of a given magnitude, the groundwater pressure increased by a smaller amount as the distance of the observation point from the source of the event increased. The data was examined using regression analysis. Based on these results, it is suggested that the effect of earthquakes on groundwater flow may be better understood through mechanistic modeling. The mechanical processes and material behavior that would need to be incorporated in such a model are examined. They include a description of the effect of stress change on the permeability and water storage capacity of a fracture rock mass; transient fluid flow; and the generation and transmission of seismic waves through the rock mass.

Ofoegbu, G.I.; Hsiung, S.; Chowdhury, A.H. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses; Philip, J. [Nuclear Regulatory Commission, Washington, DC (United States)

1995-04-01T23:59:59.000Z

364

Final report : Hanover environmental site investigation, 2009-2010.  

Science Conference Proceedings (OSTI)

The Commodity Credit Corporation (CCC), an agency of the U.S. Department of Agriculture (USDA), operated a grain storage facility at the northeastern edge of the city of Hanover, Kansas, from 1950 until the early 1970s. During this time, commercial grain fumigants containing carbon tetrachloride were in common use by the grain storage industry to preserve grain in their facilities. In February 1998, trace to low levels of carbon tetrachloride were detected in two private lawn and garden wells near the former grain storage facility at Hanover, as part of a statewide USDA private well sampling program that was implemented by the Kansas Department of Health and Environment (KDHE) near former CCC/USDA facilities. In July 2007, the CCC/USDA sampled indoor air at nine residences on or adjacent to its former facility to address the residents concerns. Low levels of carbon tetrachloride were detected at four of the nine homes. Consequently, the CCC/USDA has conducted investigations, under the direction of the KDHE, to determine the source and extent of the carbon tetrachloride contamination that might be associated with the former facility. In July 2007, the CCC/USDA sampled indoor air at nine residences on or adjacent to its former facility to address the residents concerns regarding vapor intrusion (VI). Low levels of carbon tetrachloride were detected at four of the nine homes. Because carbon tetrachloride found in private wells and indoor air at Hanover might be linked to historical use of fumigants containing carbon tetrachloride at its former grain storage facility, the CCC/USDA has conducted investigations to determine the source and extent of the carbon tetrachloride contamination that may be associated with the former facility. The results of the comprehensive investigation at Hanover indicate that no unacceptable risk to human health currently exists from exposure to surface and subsurface soils by either ingestion, inhalation or dermal contact. No risk is associated with potential exposure to contaminated groundwater at Hanover. No drinking water wells are known to exist in Hanover, and the drinking water supply comes from RWD No.1 at Lanham, Kansas, located 6.5 mi north of Hanover. Limited potential risk was identified due to exposure to indoor air contaminated with carbon tetrachloride, but this risk has been mitigated, thereby removing this threat to human health. Radon is prevalent in the community, at concentrations exceeding the level at which the EPA recommends additional measures (testing and/or mitigation). The recommended testing and mitigation (if needed) are the responsibility of the homeowners. In the current condition in which no private wells are used for drinking water in the affected area, no unacceptable human health risk from carbon tetrachloride is associated with the identified impacted media at the Hanover site.

LaFreniere, L. M. (Environmental Science Division)

2011-06-07T23:59:59.000Z

365

Spectroscopic Investigations of Selected Cyclic and Bicyclic Molecules  

E-Print Network (OSTI)

Several cyclic molecules along with two bicyclic molecules were investigated using infrared (IR), Raman, ultraviolet (UV) absorption, fluorescence excitation (FES), and single vibronic level fluorescence (SVLF) spectroscopies. The laser-induced fluorescence spectra (both fluorescence excitation and single vibronic level fluorescence) of jet-cooled 1,3-benzodioxan (13BZN) along with its ultraviolet absorption spectra have been recorded and analyzed in order to determine the vibrational quantum levels in both the ground and S1(pi,pi*) electronic excited states. A detailed energy map was established and utilized to better understand the structural and conformational differences between the ground and excited electronic states. Ab initio and DFT calculations were also carried out to complement the experimental work. The data allowed one-dimensional potential energy functions in terms of the ring-twisting coordinate to be calculated. A complete study of all of the vibrations of 13BZN in both its S0 ground and S1(pi,pi*) excited state was done utilizing several types of spectral data including infrared and Raman spectra. The vibrational frequencies of 13BZN were compared to those of the very similar 1,4-benzodioxan. The Raman and infrared spectra of dipicolinic acid (DPA), a component of anthrax spores, and dinicotinic acid (DNic) and their salts (CaDPA, Na2DPA, and CaDNic) have been recorded and the spectra have been assigned. Ab initio and DFT calculations were carried out to predict the structures and vibrational spectra and were compared to the experimental results. Theoretical calculations were also carried out for DPA dimers and DPA+2H2O to better understand the intermolecular interactions. 3-Methylindole (3MI), which serves as a structural model for the tryptophan side chain in proteins, has been investigated using vapor phase Raman spectroscopy. The vapor phase spectrum of 3MI complements previously reported Raman studies of 3MI solutions and related tryptophan derivatives. The analysis of the Raman spectrum of 3MI vapor was also supported here with newly obtained vapor phase infrared data and ab initio calculation to refine previous vibrational assignments. The present results provide an improved basis for assessing the dependence on the indoyl Raman signature on the local environment of the tryptophan side chain of proteins.

McCann, Kathleen Rae

2009-08-01T23:59:59.000Z

366

INVESTIGATION IN HARDSURFACING A NICKEL-COPPER ALLOY (MONEL400).  

SciTech Connect

Brookhaven National Laboratory (BNL) investigated the causes of weldability problems and materials failures encountered with the application of Monel (Ni-Cu) 400 as a base material and Stellite 6 (Co-Cr) as the hard-surfacing material when using the oxyacetylene welding process. This work was performed under a cooperative research and development agreement (CRADA) with the Target Rock Division of the Curtiss-Wright Flow Control Corporation. BNL evaluated two heats of Monel 400 material. One of the heats had performed well during manufacturing, producing an acceptable number of ''good'' parts. The second heat had produced some good parts but also exhibited a peculiar type of hardsurfacing/base metal collapse during the welding process. A review of the chemistry on the two heats of material indicated that they both met the chemical requirements for Monel400. During examination of the failed component, linear indications (cracks) were evident on the valve body, both on the circumferential area (top of valve body) and below the hard surfaced weld deposit. independent measurements also indicated that the two heats met the specification requirement for the material. The heat affected zone (HAZ) also contained linear discontinuities. The valve body was welded using the oxyacetylene welding process, a qualified and skilled welder, and had been given a pre-heat of between 1400-1600 F (760-871 C), which is the Target Rock qualified procedure requirement. Both original suppliers performed mechanical testing on their material that indicated the two heats also met the mechanical property requirements of the specification. The BNL investigation into the cause of the differences between these heats of material utilized the following techniques: (1) Heat Treatment of both heats of material; (2) Hardness testing; (3) Optical microscopy; (4) Scanning electron microscope (SEM)/Fractography; and (5) Energy dispersive spectroscopy (EDS). The report concludes that the cause of the failure of the valve body during welding is not obvious, however, it does not appear to be a welding issue. The observed inter-granular fractures indicate a grain boundary problem. Further research is recommended.

CZAJKOWSKI,C.; BUTTERS,M.

2001-12-01T23:59:59.000Z

367

Smith River Rancheria's Development of an Energy Organization Investigation  

SciTech Connect

Smith River Rancheria (SRR), for some time, has had a strong commitment to attaining energy selfsufficiency, to reduce overall energy costs and concurrently initiate economic development within the community. Early on it was recognized that the development of an energy organization was important and for this reason was made part of the SRR's strategic review not only for economic development but also the reduction of energy costs. Towards this end, SRR retained Werner G. Buehler of W.G. Buehler & Associates to investigate the many phases or steps required to establish such an energy organization and determine, if in fact, it could benefit the Tribe. The basic phases are delineated as: (1) Identify potential sources of wholesale power and transmission paths; (2) Evaluating the various forms of energy organizations; (3) Determining the benefits (and disadvantages) of each form of organization; (4) Gathering costs to organize and operate the selected form or energy organization; (5) Performing an economic analysis of forming and operating an energy organization; and (6) Develop an implementation plan.

W.G Buehler & Associates

2007-08-27T23:59:59.000Z

368

Computational and experimental investigation of magnetized target fusion  

SciTech Connect

In Magnetized Target Fusion (MTF), a preheated and magnetized target plasma is hydrodynamically compressed to fusion conditions. Because the magnetic field suppresses losses by electron thermal conduction in the fuel during the target implosion heating process, the compression may be over a much longer time scale than in traditional inertial confinement fusion (ICF). Bigger targets and much lower initial target densities than in ICF can be used, reducing radiative energy losses. Therefore, ``liner-on-plasma`` compressions, driven by relatively inexpensive electrical pulsed power, may be practical. Potential MTF target plasmas must meet minimum temperature, density, and magnetic field starting conditions, and must remain relatively free of high-Z radiation-cooling-enhancing contaminants. At Los Alamos National Laboratory, computational and experimental research is being pursued into MTF target plasmas, such as deuterium-fiber-initiated Z-pinches, and the Russian-originated MAGO plasma. In addition, liner-on-plasma compressions of such target plasmas to fusion conditions are being computationally modeled, and experimental investigation of such heavy liner implosions has begun. The status of the research will be presented.

Sheehey, P.T.; Guzik, J.A.; Kirkpatrick, R.C.; Lindemuth, I.R.; Scudder, D.W.; Shlachter, J.S.; Wysocki, F.J.

1996-07-01T23:59:59.000Z

369

An Investigation of Laboratory-Grown "Ice Spikes"  

E-Print Network (OSTI)

We have investigated the formation of 10-50 mm long ``ice spikes'' that sometimes appear on the free surface of water when it solidifies. By freezing water under different conditions, we measured the probability of ice spike formation as a function of: 1) the air temperature in the freezing chamber, 2) air motion in the freezing chamber (which promotes evaporative cooling), 3) the quantity of dissolved salts in the water, and 4) the size, shape, and composing material of the freezing vessel. We found that the probability of ice spike formation is greatest when the air temperature is near -7 C, the water is pure, and the air in the freezing chamber is moving. Even small quantities of dissolved solids greatly reduce the probability of ice spike formation. Under optimal conditions, approximately half the ice cubes in an ordinary ice cube tray will form ice spikes. Guided by these observations, we have examined the Bally-Dorsey model for the formation of ice spikes. In this model, the density change during solidification forces supercooled water up through a hollow ice tube, where it freezes around the rim to lengthen the tube. We propose that any dissolved solids in the water will tend to concentrate at the tip of a growing ice spike and inhibit its growth. This can qualitatively explain the observation that ice spikes do not readily form using water containing even small quantities of dissolved solids.

K. G. Libbrecht; K. Lui

2003-10-12T23:59:59.000Z

370

JV Task 112-Optimal Ethanol Blend-Level Investigation  

SciTech Connect

Highway Fuel Economy Test (HWFET) and Federal Test Procedure 75 (FTP-75) tests were conducted on four 2007 model vehicles; a Chevrolet Impala flex-fuel and three non-flex-fuel vehicles: a Ford Fusion, a Toyota Camry, and a Chevrolet Impala. This investigation utilized a range of undenatured ethanol/Tier II gasoline blend levels from 0% to 85%. HWFET testing on ethanol blend levels of E20 in the flex fuel Chevrolet Impala and E30 in the non-flex-fuel Ford Fusion and Toyota Camry resulted in miles-per-gallon (mpg) fuel economy greater than Tier 2 gasoline, while E40 in the non-flex-fuel Chevrolet Impala resulted in an optimum mpg based on per-gallon fuel Btu content. Exhaust emission values for non-methane organic gases (NMOG), carbon monoxide (CO), and nitrogen oxides (NO{sub x}) obtained from both the FTP-75 and the HWFET driving cycles were at or below EPA Tier II, Light-Duty Vehicles, Bin 5 levels for all vehicles tested with one exception. The flex-fuel Chevrolet Impala exceeded the NMOG standard for the FTP-75 on E-20 and Tier II gasoline.

Richard Shockey; Ted Aulich; Bruce Jones; Gary Mead; Paul Steevens

2008-01-31T23:59:59.000Z

371

Investigation of the rank dependence of tar evolution  

SciTech Connect

The objectives of this study are to develop an improved understanding of the process of coal tar evolution, its relationship to the structural characteristics of the parent coal, and the dependence of the chemical and physical properties of the tar products on the conditions of devolatilization. Data from this study are expected to allow hypothesis testing and refinements of coal devolatilization models relevant to the pulverized coal combustion process. The program is divided into seven major technical areas: tar evolution rates in rapid heating conditions; molecular weight and vapor pressure characteristics of tars; chemical structure and calorific values of tars; influence of interphase mass transport phenomena; gas phase secondary reactions of primary'' tars; parent coal nitrogen evolution during devolatilization; and model hypothesis testing. A range of coal ranks, from a Texas lignite to a Pennsylvania anthracite, are employed in the investigation. In addition, a high temperature polymer, a polyimide, is utilized as an additional reference case. The polyimide serves as a truly polymeric reference material for examining the nitrogen evolution behavior of coal. The samples are subjected to elemental composition determination, infrared absorbance characteristics, calorific value, high temperature ash analysis, and maceral composition. Consideration is being given to NMR analysis as well as tetrahydrofuran (THF) solubility. Results are discussed. 4 refs., 27 figs., 4 tabs.

Freihaut, J.D.; Proscia, W.M.

1990-01-01T23:59:59.000Z

372

Loop Quantum Cosmology in Bianchi Type I Models: Analytical Investigation  

E-Print Network (OSTI)

The comprehensive formulation for loop quantum cosmology in the spatially flat, isotropic model was recently constructed. In this paper, the methods are extended to the anisotropic Bianchi I cosmology. Both the precursor and the improved strategies are applied and the expected results are established: (i) the scalar field again serves as an internal clock and is treated as emergent time; (ii) the total Hamiltonian constraint is derived by imposing the fundamental discreteness and gives the evolution as a difference equation; and (iii) the physical Hilbert space, Dirac observables and semi-classical states are constructed rigorously. It is also shown that the state in the kinematical Hilbert space associated with the classical singularity is decoupled in the difference evolution equation, indicating that the big bounce may take place when any of the area scales undergoes the vanishing behavior. The investigation affirms the robustness of the framework used in the isotropic model by enlarging its domain of validity and provides foundations to conduct the detailed numerical analysis.

Dah-Wei Chiou

2006-09-07T23:59:59.000Z

373

Experimental Investigation of Natural Convection in Trombe Wall Systems  

E-Print Network (OSTI)

In this paper, experiments with a passive solar building with Trombe wall in the north cold climate are carried out and discussed, and the natural convection heat transfer process has been investigated. The relativity of the factors affecting indoor air temperature is analyzed with the stepwise regression method. The results indicate that thermo-circulation induced by the stack effect is the dominant factor. The natural convection in the channel is fairly complex; it changes from the laminar flow to the turbulent flow and the turbulent flow covers at least half the height of massive wall during the normal circulation. The flow in the channel is considered as natural convection between vertical plates. Analyzing the natural convection heat transfer process with the Rayleigh number and the mean Nusselt number, the thermo-circulation can be divided into three periods in the daytime: coast up, maintenance and weaken. During the maintenance period, the changes of the solar radiation intensity and surface temperatures have little effect on Nu number.

Chen, B.; Zhao, J.; Chen, C.; Zhuang, Z.

2006-01-01T23:59:59.000Z

374

An Investigation of Digital Instrumentation and Control System Failure Modes  

SciTech Connect

A study sponsored by the Nuclear Regulatory Commission study was conducted to investigate digital instrumentation and control (DI&C) systems and module-level failure modes using a number of databases both in the nuclear and non-nuclear industries. The objectives of the study were to obtain relevant operational experience data to identify generic DI&C system failure modes and failure mechanisms, and to obtain generic insights, with the intent of using results to establish a unified framework for categorizing failure modes and mechanisms. Of the seven databases studied, the Equipment Performance Information Exchange database was found to contain the most useful data relevant to the study. Even so, the general lack of quality relative to the objectives of the study did not allow the development of a unified framework for failure modes and mechanisms of nuclear I&C systems. However, an attempt was made to characterize all the failure modes observed (i.e., without regard to the type of I&C equipment under consideration) into common categories. It was found that all the failure modes identified could be characterized as (a) detectable/preventable before failures, (b) age-related failures, (c) random failures, (d) random/sudden failures, or (e) intermittent failures. The percentage of failure modes characterized as (a) was significant, implying that a significant reduction in system failures could be achieved through improved online monitoring, exhaustive testing prior to installation, adequate configuration control or verification and validation, etc.

Korsah, Kofi [ORNL; Cetiner, Mustafa Sacit [ORNL; Muhlheim, Michael David [ORNL; Poore III, Willis P [ORNL

2010-01-01T23:59:59.000Z

375

Feasibility investigation of the giromill for generation of electrical power  

DOE Green Energy (OSTI)

The cyclogiro computer program, obtained from Prof. H. C. Larsen of the United States Air Force Institute of Technology, was modified to incorporate computation of blade loads for the normal operating and gust loading conditions. The program was also changed to allow computation of the effects of smoothing the blade rock angles in the region where they experienced large oscillations due to passing through a vortex shed by the previous blade. Using this program the various effects of rotor geometric parameters were investigated. Giromill configuration design concepts were explored. A baseline concept was adopted having an upper structural triangular tower extending through the lower support tower and supported by two main rotor bearings. Twenty-one different Giromill systems covering a power range of 120, 500 and 1500 kW were then synthesized. These were structurally analyzed and sized. An automatic electronic control concept built around existing equipment and employing state of the art techniques was developed. Preliminary cost estimates for generating electrical power from the Giromill systems were completed. Cost estimating relationships of the major items of equipment were formulated. 10 references. (auth)

Brulle, R.V.

1975-11-01T23:59:59.000Z

376

Seismic investigations of the HDR Safety Program. Summary report  

Science Conference Proceedings (OSTI)

The primary objective of the seismic investigations, performed at the HDR facility in Kahl/Main, FRG was to validate calculational methods for the seismic evaluation of nuclear-reactor systems, using experimental data from an actual nuclear plant. Using eccentric mass shaker excitation the HDR soil/structure system was tested to incipient failure, exhibiting highly nonlinear response and demonstrating that structures not seismically designed can sustain loads equivalent to a design basin earthquake (DBE). Load transmission from the structure to piping/equipment indicated significant response amplifications and shifts to higher frequencies, while the response of tanks/vessels depended mainly on their support conditions. The evaluation of various piping support configurations demonstrated that proper system design (for a given spectrum) rather than number of supports or system stiffness is important to limiting pipe greens. Piping at loads exceeding the DBE eightfold still had significant margins and failure is improbable inspite of multiple support failures. The mean value for pipe damping, even under extreme loads, was found to be about 4%. Comparison of linear and nonlinear computational results with piping response measurements showed that predictions have a wide scatter and do not necessarily yield conservative responses underpredicting, in particular, peak support forces. For the soil/structure system the quality of the predictions did not depend so much on the complexity of the modeling, but rather on whether the model captured the salient features and nonlinearities of the system.

Malcher, L.; Schrammel, D. [Kernforschungszentrum Karlsruhe GmbH (Germany); Steinhilber, H. [Fraunhofer-Institut fuer Betriebsfestigkeit (LBF), Darmstadt (Germany); Kot, C.A. [Argonne National Lab., IL (United States)

1994-08-01T23:59:59.000Z

377

Experimental investigations on sodium plugging in narrow flow channels.  

SciTech Connect

A series of experiments was performed to investigate the potential for plugging of narrow flow channels of sodium by impurities (e.g., oxides). In the first phase of the experiments, clean sodium was circulated through the test sections simulating flow channels in a compact diffusion-bonded heat exchanger such as a printed circuit heat exchanger. The primary objective was to see if small channels whose cross sections are semicircles of 2, 4, and 6 mm in diameter are usable in liquid sodium applications where sodium purity is carefully controlled. It was concluded that the 2-mm channels, the smallest of the three, could be used in clean sodium systems at temperatures even as low as 100 to 110 C without plugging. In the second phase, sodium oxide was added to the loop, and the oxygen concentration in the liquid sodium was controlled by means of varying the cold-trap temperature. Intentional plugging was induced by creating a cold spot in the test sections, and the subsequent plugging behavior was observed. It was found that plugging in the 2-mm test section was initiated by lowering the cold spot temperature below the cold-trap temperature by 10 to 30 C. Unplugging of the plugged channels was accomplished by heating the affected test section.

Momozaki, Y.; Cho, D. H.; Sienicki, J. J.; Moisseytsev, A.; Nuclear Engineering Division

2010-08-01T23:59:59.000Z

378

Vehicle Transient Air Conditioning Analysis: Model Development& System Optimization Investigations  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) has developed a transient air conditioning (A/C) system model using SINDA/FLUINT analysis software. It captures all the relevant physics of transient A/C system performance, including two-phase flow effects in the evaporator and condenser, system mass effects, air side heat transfer on the condenser/evaporator, vehicle speed effects, temperature-dependent properties, and integration with a simplified cabin thermal model. It has demonstrated robust and powerful system design optimization capabilities. Single-variable and multiple variable design optimizations have been performed and are presented. Various system performance parameters can be optimized, including system COP, cabin cool-down time, and system heat load capacity. This work presents this new transient A/C system analysis and optimization tool and shows some high-level system design conclusions reached to date. The work focuses on R-134a A/C systems, but future efforts will modify the model to investigate the transient performance of alternative refrigerant systems such as carbon dioxide systems. NREL is integrating its transient air conditioning model into NRELs ADVISOR vehicle system analysis software, with the objective of simultaneously optimizing A/C system designs within the overall vehicle design optimization.

Hendricks, T. J.

2001-06-01T23:59:59.000Z

379

Friction microprobe investigation of particle layer effects on sliding friction  

DOE Green Energy (OSTI)

Interfacial particles (third-bodies), resulting from wear or external contamination, can alter and even dominate the frictional behavior of solid-solid sliding in the absence of effective particle removal processes (e.g., lubricant flow). A unique friction microprobe, developed at Oak Ridge National Laboratory, was used to conduct fine- scale friction studies using 1.0 mm diameter stainless steel spheres sliding on several sizes of loose layers of fine aluminum oxide powders on both aluminum and alumina surfaces. Conventional, pin-on-disk experiments were conducted to compare behavior with the friction microprobe results. The behavior of the relatively thick particle layers was found to be independent of the nature of underlying substrate, substantiating previous work by other investigators. The time-dependent behavior of friction, for a spherical macrocontact starting from rest, could generally be represented by a series of five rather distinct phases involving static compression, slider breakaway, transition to steady state, and dynamic layer instability. A friction model for the steady state condition, which incorporates lamellar powder layer behavior, is described.

Blau, P.J.

1993-01-01T23:59:59.000Z

380

Investigations into Cost Reductions of X-band Instrumentation  

SciTech Connect

The prohibitive costs of commercial test equipment for making fast and accurate pulsed phase and amplitude measurements at X-Band result in decreased productivity due to shortages of shared equipment across the test laboratory. In addition, most current set-ups rely on the use of pulsed power heads which do not allow for the measurement of phase thereby limiting the flexibility of available measurements. In this paper, we investigate less expensive in-house designed instrumentation based upon commercial satellite down converters and widely available logarithmic detector amplifiers and phase detectors. The techniques are used to measure X-Band pulses with widths of 50 ns to 10's of usec. We expect a dynamic range of 30-40 dB with accuracies of better than +/- 0.1 dB and +/- 1 degree of phase. We show preliminary results of the built and tested modules. Block diagrams of the down conversion scheme, and the architecture of a multi-signal X-band RF monitor and measurement system is illustrated. Measured results, and possible modifications and upgrades are presented.

Van Winkle, D.; Dolgashev, V.A.; Fox, J.D.; Tantawi, S.G.; /SLAC

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Source Parameter Investigation of the 1993 Rock Valley Earthquake Sequence  

E-Print Network (OSTI)

Close portable recordings of the RockValley earthquake sequence con#rm the unusually shallow 2 km average hypocentral depths, and provide data for an investigation of the source parameters. Stress drops are estimated using both a spectral #tting technique that #rst corrects for attenuation, and a deconvolution technique that inherently accounts for attenuation. The shallow depths suggest a relatively low level of shear stress acting on the RockValley fault, and allow an estimation of seismic e#ciencies. The data allow the possibility of large stress drops, on the order of 100 bars, implying seismic e#ciencies much greater than 0.1. This has important implications for the unresolved issue of the strength of faults in general. A dependence of stress drop with seismic moment remains unresolvable with this data. However, the possibility of partial stress drops and non-linear responses does exist. A seismic survey designed speci#cally for the purpose of measuring attenuation could resolve t...

Gordon Shields; Gordon Shields

1999-01-01T23:59:59.000Z

382

Results of investigations at the Ahuachapan geothermal field, El Salvador  

Science Conference Proceedings (OSTI)

Well logging operations were performed in eight of the geothermal wells at Ahuachapan. High-temperature downhole instruments, including a temperature/rabbit, caliper, fluid velocity spinner/temperature/pressure (STP), and fluid sampler, were deployed in each well. The caliper tool was used primarily to determine if chemical deposits were present in well casings or liners and to investigate a suspected break in the casing in one well. STP logs were obtained from six of the eight wells at various flow rates ranging from 30 to 80 kg/s. A static STP log was also run with the wells shut-in to provide data to be used in the thermodynamic analysis of several production wells. The geochemical data obtained show a system configuration like that proposed by C. Laky and associates in 1989. Our data indicate recharge to the system from the volcanic highlands south of the field. Additionally, our data indicate encroachment of dilute fluids into deeper production zones because of overproduction. 17 refs., 50 figs., 10 tabs.

Dennis, B.; Goff, F.; Van Eeckhout, E.; Hanold, B. (comps.)

1990-04-01T23:59:59.000Z

383

Investigation related to hydrogen isotopes separation by cryogenic distillation  

Science Conference Proceedings (OSTI)

Research conducted in the last fifty years has shown that one of the most efficient techniques of removing tritium from the heavy water used as moderator and coolant in CANDU reactors (as that operated at Cernavoda (Romania)) is hydrogen cryogenic distillation. Designing and implementing the concept of cryogenic distillation columns require experiments to be conducted as well as computer simulations. Particularly, computer simulations are of great importance when designing and evaluating the performances of a column or a series of columns. Experimental data collected from laboratory work will be used as input for computer simulations run at larger scale (for The Pilot Plant for Tritium and Deuterium Separation) in order to increase the confidence in the simulated results. Studies carried out were focused on the following: - Quantitative analyses of important parameters such as the number of theoretical plates, inlet area, reflux flow, flow-rates extraction, working pressure, etc. - Columns connected in series in such a way to fulfil the separation requirements. Experiments were carried out on a laboratory-scale installation to investigate the performance of contact elements with continuous packing. The packing was manufactured in our institute. (authors)

Bornea, A.; Zamfirache, M.; Stefanescu, I.; Preda, A.; Balteanu, O.; Stefan, I. [INC-DTCI-ICSI Rm. Valcea, str.Uzinei, Nr.4, 240050 (Romania)

2008-07-15T23:59:59.000Z

384

Investigation of a sulfur reduction technique for mild gasification char  

DOE Green Energy (OSTI)

The object of this program is to investigate the desulfurization of mild gasification char using hydrogen/methane mixtures in a laboratory-scale experimental study. In the first year of the two- year program, char is being treated with mixtures of H{sub 2} and CH{sub 4} at temperatures of 1100{degrees}C to 1550{degrees}F and pressures of 50 to 100 psig. The effects of temperature, pressure, residence time, gas velocity, and gas composition on sulfur removal and carbon gasification are being determined. The batch experiments are being performed in a nominal 2-inch-ID stainless-steel, batch, fluidized-bed reactor. The char to be desulfurized was produced by the IGT mild gasification process research unit (PRU) in a recently completed DOE/METC-sponsored technology development program. The parent coal was Illinois No. 6 from a preparation plant, and the char from the selected test contains 4.58 wt% sulfur. In the first quarter, we have obtained and prepared a char for the desulfurization tests. Ultimate and proximate analyses were performed on this char, and its pore size distribution and surface area were determined. Also this quarter, the fluidized-bed reactor system was constructed and equipped with high pressure mass flow controllers and a high pressure sintered metal filter to remove fines from the effluent gas stream.

Knight, R.A.

1991-01-01T23:59:59.000Z

385

MERCURY CONTAMINATED MATERIAL DECONTAMINATION METHODS: INVESTIGATION AND ASSESSMENT  

Science Conference Proceedings (OSTI)

Over the years mercury has been recognized as having serious impacts on human health and the environment. This recognition has led to numerous studies that deal with the properties of various mercury forms, the development of methods to quantify and speciate the forms, fate and transport, toxicology studies, and the development of site remediation and decontamination technologies. This report reviews several critical areas that will be used in developing technologies for cleaning mercury from mercury-contaminated surfaces of metals and porous materials found in many DOE facilities. The technologies used for decontamination of water and mixed wastes (solid) are specifically discussed. Many technologies that have recently appeared in the literature are included in the report. Current surface decontamination processes have been reviewed, and the limitations of these technologies for mercury decontamination are discussed. Based on the currently available technologies and the processes published recently in the literature, several processes, including strippable coatings, chemical cleaning with iodine/iodide lixiviant, chemisorbing surface wipes with forager sponge and grafted cotton, and surface/pore fixation through amalgamation or stabilization, have been identified as potential techniques for decontamination of mercury-contaminated metal and porous surfaces. Their potential merits and applicability are discussed. Finally, two processes, strippable coatings and chemical cleaning with iodine/iodide lixiviant, were experimentally investigated in Phase II of this project.

M.A. Ebadian, Ph.D.

2001-01-01T23:59:59.000Z

386

Exploratory research and development project for soil sampling probe investigation  

SciTech Connect

The report investigates a number of design concepts for a soil sampling probe. The design concepts are shown as a series of figures drawn to scale. The probe would be attached to the lower end of a 2-inch diameter drill casing that is inserted into the ground with a steady downward force. It is intended to be used at soil depths of 0-50 feet. Small soil samples will be gathered through the use of a pneumatic jet or a remotely operated mechanical finger. The soil sample will then be transported pneumatically from the tip of the probe to the surface via a sample line in the center of the drill casing. This is achieved by entraining the soil samples in a stream of clean dry nitrogen. At the surface, the soil sample will be filtered from the carrier gas. The report also considers designs that use a carrier capsule. The soil would be remotely placed in a transport capsule at the tip of the probe and pneumatic pressure would be used to force the capsule up the sample line to the surface for retrieval. The soil sampling is to be done without removing the drill casing or using any of the typical coring tools. The sampling system is specifically aimed at soil that may be contaminated with radioactive or toxic materials. The system is suitable for remote operation with a minimum impact and generation of waste. The concepts may also be useful for remote sampling for other applications. 8 figs.

Thurston, G.C.

1991-02-01T23:59:59.000Z

387

RCRA Facility Investigation/Remedial Investigation Report with Baseline Risk Assessment for the Fire Department Hose Training Facility (904-113G)  

Science Conference Proceedings (OSTI)

This report documents the Resource Conservation and Recovery Act (RCRA) Facility Investigation/Remedial Investigation/Baseline Risk Assessment (RFI/RI/BRA) for the Fire Department Hose Training Facility (FDTF) (904-113G).

Palmer, E. [Westinghouse Savannah River Company, AIKEN, SC (United States)

1997-04-01T23:59:59.000Z

388

Web Based Course: SAF-230DE, Accident Investigation Overview Promotional Video  

Energy.gov (U.S. Department of Energy (DOE))

This course that provides an overview of the fundamentals of accident investigation. The course is intended to meet the every five year refresher training requirement for DOE Federal Accident Investigators under DOE O 225.1B, Accident Investigations.

389

Investigations of the Biological Roles of Substituted Cyclohexadienes  

E-Print Network (OSTI)

In recent years there have been two cycloterpenals, molecules consisting of a cyclohexadienal core, isolated from nature. Cyclocitral, the condensation product of citral, has been isolated from the North Sea bryozoans Flustra foliacea. In the human eyes, cycloretinal has been isolated and is a toxic by product of the vision cycle. This retinal dimer is believed to contribute to age related macular degeneration, the leading cause of blindness in the elderly. In 1992, it was discovered that if [beta]-ionylideneacetaldehyde was incubated with beta-lactoglobulin ([beta]-LG), the principal whey protein in dairy milk, that it would mediate the formation of cyclo-[beta]-ional. No follow up studies were performed on this protein mediated reaction or what biological activities these cycloterpenals may possess. This dissertation investigates the biological roles of substituted cyclohexadienes including cycloterpenals and cyclohexadiene enaminonitriles. To mimic the protein mediated reaction, we developed a synthetic procedure to produce a wide array of cycloterpenal by utilizing L-proline. Over 100 cycloterpenals were synthesized and screened for their biological activities against an array of cell based screens. The phenotypic effects of these cycloterpenals were screened against a PC12 assay where dramatic effects were observed on neurite outgrowth. During the synthesis of starting materials for the production of our cycloterpenal library, it was discovered that if excess base was added to the Horner-Wadsworth-Emmons reaction between a methyl-ketone and diethyl-(cyanomethyl)-phosphonate, conversion of the [alpha]-[beta]-unsaturated nitrile into an enaminonitrile was observed. This new synthetic procedure was optimized to generate a library of enaminonitriles as well as their quinazoline derivatives. The work within also includes the investigation of the [beta]-LG mediated reaction formation of cycloterpenals with natural and unnatural [beta]-methyl aldehydes. We were able to demonstrate that [beta]-LG could mediate the conversion of [alpha],[beta]-unsaturated aldehydes into their corresponding cycloterpenal. In vitro analysis was also performed with store bought milks and the [beta]-LG present was able to mediate the formation of cyclocitral. An in vivo experiment was also performed by utilizing New Zealand White rabbits to demonstrate the formation of cycloretinal within the blood stream by feeding a source of [beta]-LG with retinal. Interestingly, in human blood, [beta]-LG is present at concentrations of 0.7-1.2 g/dL. The protein has been identified within drusen pigments and lipofuscin granules that accumulate in the retina of macular degeneration patients. As humans do not produce beta-lactoglobulin, the source of this protein is from milk and milk products. With these experiments, we clearly demonstrate that under the appropriate conditions, cycloretinal can be produced with [beta]-LG. We have clearly established a direct link between [beta]-LG chemistry and age-related macular degeneration.

Bench, Bennie John

2009-12-01T23:59:59.000Z

390

Investigation of microalgae cultivation and anaerobic codigestion of algae and sewage sludge for wastewater treatment facilities.  

E-Print Network (OSTI)

??The main goals of this research are to investigate the anaerobic digestibility of algae and to investigate the effects of growth media on the growth (more)

Wang, Meng

2013-01-01T23:59:59.000Z

391

An investigation of corrosion in semiconductor bridge explosive devices.  

SciTech Connect

In the course of a failure investigation, corrosion of the lands was occasionally found in developmental lots of semiconductor bridge (SCB) detonators and igniters. Evidence was found in both detonators and igniters of the gold layer being deposited on top of a corroded aluminum layer, but inspection of additional dies from the same wafer did not reveal any more corroded parts. In some detonators, evidence was found that corrosion of the aluminum layer also happened after the gold was deposited. Moisture and chloride must both be present for aluminum to corrode. A likely source for chloride is the adhesive used to bond the die to the header. Inspection of other SCB devices, both recently manufactured and manufactured about ten years ago, found no evidence for corrosion even in devices that contained SCBs with aluminum lands and no gold. Several manufacturing defects were noted such as stains, gouges in the gold layer due to tooling, and porosity of the gold layer. Results of atmospheric corrosion experiments confirmed that devices with a porous gold layer over the aluminum layer are susceptible to extensive corrosion when both moisture and chlorine are present. The extent of corrosion depends on the level of chlorine contamination, and corrosion did not occur when only moisture was present. Elimination of the gold plating on the lands eliminated corrosion of the lands in these experiments. Some questions remain unanswered, but enough information was gathered to recommend changes to materials and procedures. A second lot of detonators was successfully built using aluminum SCBs, limiting the use of Ablebond{trademark} adhesive, increasing the rigor in controlling exposure to moisture, and adding inspection steps.

Klassen, Sandra Ellen; Sorensen, Neil Robert

2007-05-01T23:59:59.000Z

392

Archaeological investigations on the Buckboard Mesa Road Project  

SciTech Connect

In 1986, the Desert Research Institute (DRI) conducted an archaeological reconnaissance of a new alignment for the Buckboard Mesa Road on the Nevada Test Site for the Department of Energy (DOE). During this reconnaissance, several archaeological sites of National Register quality were discovered and recorded including a large quarry, site 26Ny4892, and a smaller lithic scatter, site 26Ny4894. Analysis of the debitage at 26Ny4892 indicates that this area was used primarily as a quarry for relatively small cobbles of obsidian found in the alluvium. Lithic reduction techniques used here are designed for efficiently reducing small pieces of toolstone and are oriented towards producing flake blanks from small cores and bifacially reducing exhausted cores. Projectile point cross references indicate that the area has seen at least casual use for about 10,000 years and more sustained use for the last 3,000 years. Initial obsidian hydration measurements indicate sustained use of the quarry for about the last 3,000 years although the loci of activities appear to change over time. Based on this study, the DRI recommends that quarrying activities in the area of 26Ny4892 are sufficiently sampled and that additional investigations into that aspect of prehistoric activity in the area are not necessary. This does not apply to other aspects of prehistoric use. DRI recommends that preconstruction surveys continue to identify nonquarrying, prehistoric utilization of the area. With the increased traffic on the Buckboard Mesa Road, there is a greater potential for vandalism to sites of National Register-quality located near the road. The DRI recommends that during the orientation briefing the workers at the Test Site be educated about the importance of cultural resources and the need for their protection. 202 refs., 41 figs., 52 tabs.

Amick, D.S.; Henton, G.H.; Pippin, L.C.

1991-10-01T23:59:59.000Z

393

Geophysical investigation: New Production Reactor Complex, Idaho National Engineering Laboratory  

Science Conference Proceedings (OSTI)

Seismic crosshole and downhole velocity measurements were performed for two borehole arrays approximately 300 feet deep in conjunction with verticality measurements and geophysical logging of borehole WO-2 (to a depth of 4,960 feet) at the NPR site of the INEL. Past studies show that the site area is covered by a thin layer of soil which overlies numerous basalt flows interrupted by sandy and clayey interbeds. Compressional and shear wave velocities computed for these arrays revealed low velocity zones at the following elevation ranges for crosshole array No. 1: 4,893 feet to 4,873 feet (basalt rubble zone) and 4,705 feet to 4,686 feet (sediment interbed). Corresponding elevation ranges for crosshole array No. 2 include: 4,830 feet to 4,815 feet (sediment interbed), 4,785 feet to 4,765 feet (highly vesicular and fractured basalt), 4,715 feet to 4,705 feet (basalt rubble zone), and 4,672 feet to 4,667 feet (sediment interbed). In general, crosshole velocity data correlated between arrays with velocity differences possibly explained by localized lithologic changes. Due to scatter in the downhole velocity data, only velocity averages were computed. However, these downhole velocities correlated to the approximate mean crosshole velocity values and therefore independent confirmed the crosshole data. Geophysical logging of well WO-2 included natural gamma, neutron, and compensated density logs to a depth of 4,960 feet at which a viscous borehole fluid inhibited further investigation. Second runs of small sections of these logs were repeated satisfactorily for confirmation of certain anomalous areas.

Filipkowski, F.; Blackey, M.; Davies, D.; Levine, E.N.; Murphy, V. [Weston Geophysical Corp., Westboro, MA (US)

1991-12-01T23:59:59.000Z

394

Heat transfer investigations in a slurry bubble column  

SciTech Connect

Slurry bubble columns, for use in Fisher-Tropsch synthesis, have been investigated. Two bubble columns (0.108 and 0.305 m internal diameter) were set up and experiments were conducted to determine gas holdup and heat transfer coefficients. These columns were equipped with either single heat transfer probes of different diameters, or bundles of five-, seven- or thirty-seven tubes. The experiments were conducted for two- and three-phase systems; employing for gas phase: air and nitrogen, liquid phase: water and Therminol-66, and solid phase: red iron oxide (1.02, 1.70 and 2.38 {mu}m), glass beads (50.0, 90.0, 119.0 and 143.3 {mu}m), silica sand (65 {mu}), and magnetite (28.0, 35.7, 46.0, 58.0, 69.0, 90.5, 115.5, and 137.5 {mu}m). The column temperature was varied between 298--523 K, gas velocity between 0--40 cm/s, and solids concentration between 0--50 weight percent. The holdup and heat transfer data as a function of operating and system parameters were employed to assess the available correlations and semitheoretical models, and to develop new correlations. Information concerning the design and scale-up of larger units is presented. Specific research work that need to be undertaken to understand the phenomena of heat transfer and gas holdup is outlined so that efficient gas conversion and catalyst usage may be accomplished in slurry bubble columns. 130 refs., 177 figs., 54 tabs.

Saxena, S.C.; Rao, N.S.; Vadivel, R.; Shrivastav, S.; Saxena, A.C.; Patel, B.B.; Thimmapuram, P.R.; Kagzi, M.Y.; Khan, I.A.; Verma, A.K.

1991-02-01T23:59:59.000Z

395

Results of oil-shale investigations in northeastern Nevada  

SciTech Connect

The major focus of this oil-shale investigation has been on specific localities of oil-shale resource potential. Three main areas of oil-shale occurrence have been studied in detail: the Elko area, Pinon Range area, and Coal Mine Canyon. Geologic mapping, stratigraphic studies, and sampling to delimit the lateral extent of the oil shale deposits were in progress prior to the cooperative agreement with Nevada DOE. These surface geologic studies have been summarized in this report. The results of surface geologic studies conducted near Elko suggested that the Elko area represented the best and most accessible oil-shale deposits; therefore, the Elko area was selected as the site of a shallow exploratory drilling program. Essential to this study was the obtaining of fresh, unweathered oil-shale samples from the Elko area. The samples were obtained from the core-drilling program and tested for oil yield by Fischer assays. The oil yields determined from these samples, together with the geology have provided an improved basis for resource estimates for the oil-shale deposit at Elko. In addition to the more detailed field studies, a literature survey was conducted to develop a bibliography related to oil shale in Nevada and to use as a basis for identifying other oil-shale occurrences. The literature search was also extended to include information on petroleum source rocks that contain organic-rich shales with possible potential as additional oil-shale resources. The annotated bibliography is included in the appendix. 88 refs., 8 figs., 5 tabs.

Moore, S.W.; Madrid, H.B.; Server, G.T. Jr.

1983-01-01T23:59:59.000Z

396

Investigation into the feasibility of alternative plutonium shipping forms  

Science Conference Proceedings (OSTI)

Pacific Northwest Laboratory (PNL), operated for the Department of Energy by the Battelle Memorial Institute, is conducting a study for the Nuclear Regulatory Commission on the feasibility of altering current plutonium shipping forms to reduce or eliminate the airborne dispersibility of PuO/sub 2/ which might occur during a shipping accident. Plutonium used for fuel fabrication is currently shipped as a PuO/sub 2/ powder with a significant fraction in the respirable size range. If the high-strength container is breached due to stresses imposed during a transportation accident, the PuO/sub 2/ powder could be subject to airborne dispersion. The available information indicated that a potential accident involving fire accompanied by crush/impact forces would lead to failure of current surface shipping containers (no assumptions were made on the possibility of such a severe accident). Criteria were defined for an alternate shipping form to mitigate the effects of such an accident. Candidate techniques and materials were evaluated as alternate shipping forms by a task team consisting of personnel from PNL and Rockwell Hanford Operations (RHO). At this time, the most promising candidate for an alternate plutonium shipping form appears to be pressing PuO/sub 2/ into unsintered (green) pellets. These green pellets satisfy the criteria for a less dispersible form without requiring significant process changes. Discussions of all candidates considered are contained in a series of appendices. Recommendations for further investigations of the applicability of green pellets as an alternate shipping form are given, including the need for a cost-benefit study.

Mishima, J.; Lindsey, C.G.

1983-06-01T23:59:59.000Z

397

Analytical and experimental investigations of hybrid air foil bearings  

E-Print Network (OSTI)

Air foil bearings offer several advantages over oil-lubricated bearings in high speed micro-turbomachinery. With no contact between the rotor and bearings, the air foil bearings have higher service life and consequently lesser standstills between operations. However, the foil bearings have reliability issues that come from dry rubbing during start-up/shutdown and limited heat dissipation capability. Regardless of lubricating media, the hydrodynamic pressure generated provides only load support but no dissipation of parasitic energy generated by viscous drag and the heat conducted from other parts of the machine through the rotor. The present study is a continuation of the work on hybrid air foil bearings (HAFB) developed by Kim and Park, where they present a new concept of air foil bearing combining hydrodynamic air foil bearing with hydrostatic lift. Their experimental studies show that HAFB has superior performance compared to its hydrodynamic counterpart in load capacity and cooling performance. In this article, the bearing stiffness and damping coefficients of HAFB are calculated using a linear perturbation method developed for HAFB. The study focuses on circular HAFB with a single continuous top foil supported by bump foil. The research also includes a parametric study which outlines the dependence of the stiffness and damping coefficients on various design parameters like supply pressure ( P s ), feed parameter ( ? s ), excitation frequency (v), and bearing number (?). Furthermore the present research also includes experimental investigation of HAFB with bump foil as compliant structure. In the first phase of the experimental research a high speed test facility was designed and fabricated. The facility has the capability of running up to 90,000 RPM and has an electric motor drive. This article gives detailed description of this test rig and also includes data acquired during the commissioning phase of the test rig. The test rig was then used to measure the load capacity of HAFB.

Kumar, Manish

2008-08-01T23:59:59.000Z

398

INVESTIGATION OF CRUSTAL MOTION IN THE TIEN SHAN USING INSAR  

SciTech Connect

The northern Tien Shan of Central Asia is an area of active mid-continent deformation. Although far from a plate boundary, this region has experienced 5 earthquakes larger than magnitude 7 in the past century and includes one event that may as be as large as Mw 8.0. Previous studies based on GPS measurements indicate on the order of 23 mm/yr of shortening across the entire Tien Shan and up to 15 mm/year in the northern Tien Shan (Figure 1). The seismic moment release rate appears comparable with the geodetic measured slip, at least to first order, suggesting that geodetic rates can be considered a proxy for accumulation rates of stress for seismic hazard estimation. Interferometric synthetic aperture radar may provide a means to make detailed spatial measurements and hence in identifying block boundaries and assisting in seismic hazard. Therefore, we hoped to define block boundaries by direct measurement and by identifying and resolving earthquake slip. Due to political instability in Kyrgzystan, the existing seismic network has not performed as well as required to precisely determine earthquake hypocenters in remote areas and hence InSAR is highly useful. In this paper we present the result of three earthquake studies and show that InSAR is useful for refining locations of teleseismically located earthquakes. ALOS PALSAR data is used to investigate crustal motion in the Tien Shan mountains of Central Asia. As part of the work, considerable software development was undertaken to process PALSAR data. This software has been made freely available. Two damaging earthquakes have been imaged in the Tien Shan and the locations provided by ALOS InSAR have helped to refine seismological velocity models. A third earthquake south of Kyrgyzstan was also imaged. The use of InSAR data and especially L band is therefore very useful in providing groundtruth for earthquake locations.

Mellors, R J

2011-02-25T23:59:59.000Z

399

Investigation of advanced UQ for CRUD prediction with VIPRE.  

SciTech Connect

This document summarizes the results from a level 3 milestone study within the CASL VUQ effort. It demonstrates the application of 'advanced UQ,' in particular dimension-adaptive p-refinement for polynomial chaos and stochastic collocation. The study calculates statistics for several quantities of interest that are indicators for the formation of CRUD (Chalk River unidentified deposit), which can lead to CIPS (CRUD induced power shift). Stochastic expansion methods are attractive methods for uncertainty quantification due to their fast convergence properties. For smooth functions (i.e., analytic, infinitely-differentiable) in L{sup 2} (i.e., possessing finite variance), exponential convergence rates can be obtained under order refinement for integrated statistical quantities of interest such as mean, variance, and probability. Two stochastic expansion methods are of interest: nonintrusive polynomial chaos expansion (PCE), which computes coefficients for a known basis of multivariate orthogonal polynomials, and stochastic collocation (SC), which forms multivariate interpolation polynomials for known coefficients. Within the DAKOTA project, recent research in stochastic expansion methods has focused on automated polynomial order refinement ('p-refinement') of expansions to support scalability to higher dimensional random input spaces [4, 3]. By preferentially refining only in the most important dimensions of the input space, the applicability of these methods can be extended from O(10{sup 0})-O(10{sup 1}) random variables to O(10{sup 2}) and beyond, depending on the degree of anisotropy (i.e., the extent to which randominput variables have differing degrees of influence on the statistical quantities of interest (QOIs)). Thus, the purpose of this study is to investigate the application of these adaptive stochastic expansion methods to the analysis of CRUD using the VIPRE simulation tools for two different plant models of differing random dimension, anisotropy, and smoothness.

Eldred, Michael Scott

2011-09-01T23:59:59.000Z

400

Investigation of modified speciation for enhanced control of mercury  

SciTech Connect

The control of hazardous air pollutant (HAP) emissions was addressed in Title III of the Clean Air Act Amendments of 1990, which provided an initial list of 189 elements and compounds of concern. The combustion of coal has the potential to produce a number of those species, either directly as a result of the trace elements found in coal, or as products of chemical reactions occurring in combustion. However, field studies conducted by the U.S. Department of Energy (DOE), the Electric Power Research Institute (EPRI), and others have shown that the actual emissions are very low and that effective particulate-matter capture can control most of the inorganic species. The most significant exception is mercury, which has also been singled out for particular regulatory attention because of its behavior in the environment (bioaccumulation) and the potential for deleterious health effects. In anticipation of possible regulations regarding mercury emissions, research efforts sponsored by DOE, EPRI, and others are investigating the risks posed by mercury emissions, improved techniques for measuring those emissions, and possible control measures. The focus in the control research is on techniques that can be used in conjunction with existing flue-gas-cleanup (FGC) systems in order to minimize additional capital costs and operational complexity. The very small amount of mercury (on the order of a few micrograms per cubic meter) in flue gas, its occurrence in several chemical forms that vary from system to system, the very low solubility of the elemental form, and the fact that it is usually in the vapor phase combine to make the achievement of cost-effective control a challenging task.

Livengood, C.D.; Mendelsohn, M.H.

1997-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Summary Report Documenting Status of the Rare Earth Oxide Investigation  

SciTech Connect

The goal of this work is to enhance the understanding of ceramic nuclear fuel thermochemistry through a coordinated modeling and experimental approach. This work supports the Advanced Fuels Campaign Feedstock and Fabrication Technology R&D Program and is focused on the following tasks: (1) use existing compound energy formalism-based models to support Los Alamos National Laboratory (LANL) fuel development activities, (2) assess rare earth (RE) oxide systems and begin development of thermochemical representations of U-RE-O systems, and (3) develop a U-Ce-O thermochemical model for the fluorite-structure phase. In support of the experimental efforts at the LANL, an assessment of temperature-oxygen potential conditions for preparing stoichiometric U{sub 1-y}Ce{sub y}O{sub 2} at relatively low values of y (< 0.4) was performed. There is significant agreement in the literature that both the independent urania and ceria phases, and the urania-ceria solution phase are stoichiometric at oxygen-to-metal (O/M) ratios of 2 at 850 C and an oxygen potential of -368 kJ/mol. The oxygen potential value is obtained at a partial pressure of CO/CO{sub 2} ratio of unity at 1 bar total pressure. This information was successfully applied in thermogravimetric analysis experimental efforts at LANL investigating urania, ceria, and blended powders of the two oxides. Data reported in the literature for oxygen potential-temperature-composition for U{sub 1-y}Ce{sub y}O{sub 2-x} was extracted manually and used to generate a data file. Assessment of the data showed both wide error ranges within sets of data as well as inconsistencies between data sets of different investigators. Figure 1, a plot of the extracted data, illustrates the paucity of experimental data with respect to composition, temperature, and O:M space. For example, as shown in Figure 1, the data as a function of temperature are limited to the range 873 K to 1273 K and higher O:M ratios. Furthermore, the compositions studied have focused on higher uranium fractions and very little work has been done at corresponding lower O:M ratios. A compound energy formalism representation has been developed for the (U,Ce)O{sub 2+x} utilizing developed models for the UO{sub 2+x} from Gueneau et al. (2002) and CeO{sub 2-x} of Zinkevich et al. (2006). A three sublattice approach was used to allow for uranium of valences up to +6. Vacancies are considered only on the anion sites. The ionic species are introduced in the sublattice as follows: (U{sup 6+},U{sup 4+},U{sup 3+},Ce{sup 4+},Ce{sup 3+}){sub 1}(O{sup 2-},Va){sub 2}(O{sup 2-},Va){sub 1} Gibbs free energy expressions for each of the derived constituents can be determined from standard state values. Optimizations using all available thermochemical information, e.g., oxygen potentials and phase equilibria, can thus yield the necessary corrections to the Gibbs free energies for the non-standard constituents and derived interaction parameters (L values). While a model is available that includes all the interactions separately among the urania and ceria species, determination of any possible non-ideal interactions between the urania and ceria cations requires optimization from first principles (if possible) and experimental data for the system. Utilizing the best set of data for oxygen potential-temperature-composition for U{sub 1-y}Ce{sub y}O{sub 2-x} the FactSage thermochemical computational software code was used to optimize the system for selected Gibbs free energy functions and interaction parameters. While it was possible to obtain optimized solutions, the resulting parameters did not allow adequate reproduction of the data, as can be seen in Fig. 2. As noted above, the quality of the data among the various investigators is poor and that is a likely cause for the lack of a reasonable representation. The focus for the remainder of the fiscal year will be twofold. There will be collaboration with LANL on the collection of experimental data to resolve inconsistencies in the literature data and to fill some of the gaps in the experimental space

Besmann, Theodore M [ORNL; Voit, Stewart L [ORNL; Shin, Dongwon [ORNL

2010-05-01T23:59:59.000Z

402

Investigating Childhood Overweight and Obesity in Rural Settings  

E-Print Network (OSTI)

Childrens risk for overweight and obesity is particularly high in rural areas of the United States. Many health, psychosocial, and economic consequences are associated with childhood overweight and obesity, which concerns health researchers and professionals. But how and why might rural children be more at risk for being overweight and obese? This dissertation investigates childhood overweight and obesity in rural settings through three separate studies. First, a systematic literature review was conducted to identify determinants and mechanisms of childhood obesity-related behaviors that are specific to rural locations. The findings from the review show that lack of health resources and poverty within the rural environment may impact childrens social environment and individual factors. However, results are inconclusive and there continues to be a lack of studies focusing on linking environmental influence with individual factors. Second, a meta-analysis of current research evidence was conducted to assess the efficacy of rural interventions designed to reduce childhood overweight and obesity. Results showed that interventions have been efficacious yet modest, with a mean effect size of 0.18. Moderating variables were also examined. Mean intervention effect size was moderated by childrens age and intervention duration. Last, secondary data were used to examine the association between rural food stores and availability and affordability of fresh fruits and vegetables. A multilevel analytical approach was used to determine if rural location was associated with availability and affordability of fresh fruits and vegetables. After controlling for other variables, results showed that rural location was not associated with fruit and vegetable availability and affordability. The findings from this dissertation suggest that the area of rural childhood overweight and obesity remains understudied. More research is needed in order to understand the mechanisms of social ecological influences on diet, physical activity, and childhood overweight and obesity. This area of research, however, is rife with opportunities for public health education and promotion. Public health educators can help promote and advocate for environmental conditions that support healthy lifestyles.

Serrano, Katrina 1983-

2012-12-01T23:59:59.000Z

403

Experimental Investigation of Film Cooling Effectiveness on Gas Turbine Blades  

E-Print Network (OSTI)

High turbine inlet temperature becomes necessary for increasing thermal efficiency of modern gas turbines. To prevent failure of turbine components, advance cooling technologies have been applied to different portions of turbine blades. The detailed film cooling effectiveness distributions along a rotor blade has been studied under combined effects of upstream trailing edge unsteady wake with coolant ejection by the pressure sensitive paint (PSP). The experiment is conducted in a low speed wind tunnel with a five blade linear cascade and exit Reynolds number is 370,000. The density ratios for both blade and trailing edge coolant ejection range from 1.5 to 2.0. Blade blowing ratios are 0.5 and 1.0 on suction surface and 1.0 and 2.0 on pressure surface. Trailing edge jet blowing ratio and Strouhal number are 1.0 and 0.12, respectively. Results show the unsteady wake reduces overall effectiveness. However, the unsteady wake with trailing edge coolant ejection enhances overall effectiveness. Results also show that the overall effectiveness increases by using heavier coolant for ejection and blade film cooling. Leading edge film cooling has been investigated using PSP. There are two test models: seven and three-row of film holes for simulating vane and blade, respectively. Four film holes configurations are used for both models: radial angle cylindrical holes, compound angle cylindrical holes, radial angle shaped holes, and compound angle shaped holes. Density ratios are 1.0 to 2.0 while blowing ratios are 0.5 to 1.5. Experiments were conducted in a low speed wind tunnel with Reynolds number 100,900. The turbulence intensity near test model is about 7%. The results show the shaped holes have overall higher effectiveness than cylindrical holes for both designs. As increasing density ratio, density effect on shaped holes becomes evident. Radial angle holes perform better than compound angle holes as increasing blowing and density ratios. Increasing density ratio generally increases overall effectiveness for all configurations and blowing ratios. One exception occurs for compound angle and radial angle shaped hole of three-row design at lower blowing ratio. Effectiveness along stagnation row reduces as increasing density ratio due to coolant jet with insufficient momentum caused by heavier density coolant, shaped hole, and stagnation row.

Li, Shiou-Jiuan

2012-12-01T23:59:59.000Z

404

Numerical Investigation of Interaction Between Hydraulic Fractures and Natural Fractures  

E-Print Network (OSTI)

Hydraulic fracturing of a naturally-fractured reservoir is a challenge for industry, as fractures can have complex growth patterns when propagating in systems of natural fractures in the reservoir. Fracture propagation near a natural fracture (NF) considering interaction between a hydraulic fracture (HF) and a pre-existing NF, has been investigated comprehensively using a two dimensional Displacement Discontinuity Method (DDM) Model in this thesis. The rock is first considered as an elastic impermeable medium (with no leakoff), and then the effects of pore pressure change as a result of leakoff of fracturing fluid are considered. A uniform pressure fluid model and a Newtonian fluid flow model are used to calculate the fluid flow, fluid pressure and width distribution along the fracture. Joint elements are implemented to describe different NF contact modes (stick, slip, and open mode). The structural criterion is used for predicting the direction and mode of fracture propagation. The numerical model was used to first examine the mechanical response of the NF to predict potential reactivation of the NF and the resultant probable location for fracture re-initiation. Results demonstrate that: 1) Before the HF reaches a NF, the possibility of fracture re-initiation across the NF and with an offset is enhanced when the NF has weaker interfaces; 2) During the stage of fluid infiltration along the NF, a maximum tensile stress peak can be generated at the end of the opening zone along the NF ahead of the fluid front; 3) Poroelastic effects, arising from fluid diffusion into the rock deformation can induce closure and compressive stress at the center of the NF ahead of the HF tip before HF arrival. Upon coalescence when fluid flows along the NF, the poroelastic effects tend to reduce the value of the HF aperture and this decreases the tension peak and the possibility of fracture re-initiation with time. Next, HF trajectories near a NF were examined prior to coalesce with the NF using different joint, rock and fluid properties. Our analysis shows that: 1) Hydraulic fracture trajectories near a NF may bend and deviate from the direction of the maximum horizontal stress when using a joint model that includes initial joint deformation; 2) Hydraulic fractures propagating with higher injection rate or fracturing fluid of higher viscosity propagate longer distance when turning to the direction of maximum horizontal stress; 3) Fracture trajectories are less dependent on injection rate or fluid viscosity when using a joint model that includes initial joint deformation; whereas, they are more dominated by injection rate and fluid viscosity when using a joint model that excludes initial joint deformation.

Xue, Wenxu

2010-12-01T23:59:59.000Z

405

Summary Report Documenting Status of the Rare Earth Oxide Investigation  

Science Conference Proceedings (OSTI)

The goal of this work is to enhance the understanding of ceramic nuclear fuel thermochemistry through a coordinated modeling and experimental approach. This work supports the Advanced Fuels Campaign Feedstock and Fabrication Technology R&D Program and is focused on the following tasks: (1) use existing compound energy formalism-based models to support Los Alamos National Laboratory (LANL) fuel development activities, (2) assess rare earth (RE) oxide systems and begin development of thermochemical representations of U-RE-O systems, and (3) develop a U-Ce-O thermochemical model for the fluorite-structure phase. In support of the experimental efforts at the LANL, an assessment of temperature-oxygen potential conditions for preparing stoichiometric U{sub 1-y}Ce{sub y}O{sub 2} at relatively low values of y (thermochemical information, e.g., oxygen potentials and phase equilibria, can thus yield the necessary corrections to the Gibbs free energies for the non-standard constituents and derived interaction parameters (L values). While a model is available that includes all the interactions separately among the urania and ceria species, determination of any possible non-ideal interactions between the urania and ceria cations requires optimization from first principles (if possible) and experimental data for the system. Utilizing the best set of data for oxygen potential-temperature-composition for U{sub 1-y}Ce{sub y}O{sub 2-x} the FactSage thermochemical computational software code was used to optimize the system for selected Gibbs free energy functions and interaction parameters. While it was possible to obtain optimized solutions, the resulting parameters did not allow adequate reproduction of the data, as can be seen in Fig. 2. As noted above, the quality of the data among the various investigators is poor and that is a likely cause for the lack of a reasonable representation. The focus for the remainder of the fiscal year will be twofold. There will be collaboration with LANL on the collection of experimental data to resolve inconsistencies in the literature data and to fill some of the gaps in the experimental space

Besmann, Theodore M [ORNL; Voit, Stewart L [ORNL; Shin, Dongwon [ORNL

2010-05-01T23:59:59.000Z

406

Hydrogeochemical investigation of six geothermal sites in Honduras, Central America  

DOE Green Energy (OSTI)

We conducted detailed hydrogeochemical investigations at six geothermal sites in western Honduras: Azacualpa, El Olivar, Pavana, Platanares, Sambo Creek, and San Ignacio. None of the sites is associated with Quaternary silicic volcanism, although El Olivar lies adjacent to a small Quaternary basalt field and Pavana is part of a belt of hot spring activity parallel to and 35 km east of the Central American volcanic arc. None of the sites contains acid-sulfate waters indicative of vapor-dominated conditions. Thermal fluids are characterized by pH between 7 and 10, Cl<125 mg/l, HCO/sub 3/>Cl, SO/sub 4/greater than or equal toCl, Bless than or equal to17 mg/l, Liless than or equal to4 mg/l, and Asless than or equal to1.25 mg/l. Stable isotope analyses of the water show that recharge to the geothermal systems generally occurs from areas of higher elevation adjacent to the sites. Tritium contents of apparently undiluted thermal fluids range from 0 to 0.4 T.U., indicating residence times of fluids in the systems of more than 500 y. Various geochemical indicators show that mixing of hot and cold end-member fluids occurs in the system at Platanares and, to a lesser degree, in the systems at San Ignacio and Azacualpa. No mixing is apparent in the fluids discharging at Pavana, Sambo Creek, or El Olivar. Boiling is the dominant process responsible for subtle geochemical variations at Azacualpa and, possibly, San Ignacio. Our best estimates of subsurface reservoir temperatures are 225/sup 0/C at Platanares, 190/sup 0/C at San Ignacio, 185/sup 0/C at Azacualpa, 155/sup 0/C at Sambo Creek, 150/sup 0/C at Pavana, and 120/sup 0/C at El Olivar. The estimated power output of the three hottest sites is 45 thermal megawatts at Platanares, 14 thermal megawatts at San Ignacio, and 13 thermal megawatts at Azacualpa.

Goff, F.E.; Truesdell, A.H.; Grigsby, C.O.; Janik, C.J.; Shevenell, L.A.; Paredes, J.R.; Gutierrez, J.W.; Trujillo, Jr.; Counce, D.A.

1987-06-01T23:59:59.000Z

407

Microfluidic Investigation of Tracer Dye Diffusion in Alumina Nanofluids  

E-Print Network (OSTI)

Nanofluids, a new class of fluids engineered by suspending nanometer-sized particles in a host liquid, are offered as a new strategy in order to improve heat and mass transfer efficiency. My research was motivated by previous exciting studies on enhanced mass diffusion and the possibility of tailoring mass transport by direct manipulation of molecular diffusion. Therefore, a microfluidic approach capable of directly probing tracer diffusion between nanoparticle-laden fluid streams was developed. Under conditions matching previously reported studies, strong complexation interactions between the dye and nanoparticles at the interface between fluid streams was observed. When the tracer dye and surfactant were carefully chosen to minimize the collective effects of the interactions, no significant change in tracer dye diffusivity was observed in the presence of nanoparticles. Next, adapting tracer dyes for studies involving colloidal nanomaterials was explored. Addition of these charged tracers poses a myriad of challenges because of their propensity to disrupt the delicate balance among physicochemical interactions governing suspension stability. Here it was shown how important it is to select the compatible combinations of dye, nanoparticle, and stabilizing surfactant to overcome these limitations in low volume fraction (< 1 vol%) aqueous suspensions of Al2O3 nanoparticles. A microfluidic system was applied as a stability probe that unexpectedly revealed how rapid aggregation could be readily triggered in the presence of local chemical gradients. Suspension stability was also assessed in conjunction with coordinated measurements of zeta potential, steady shear viscosity and bulk thermal conductivity. These studies also guided our efforts to prepare new refrigerant formulations containing dispersed nanomaterials, including graphene nanosheets, carbon nanotubes and metal oxide and nitride. The influence of key parameters such as particle type, size and volume fraction on the suspension's thermal conductivity was investigated using a standard protocol. Our findings showed that thermal conductivity values of carbon nanotube and graphene nanosheet suspensions were higher than TiO2 nanoparticles, despite some nanoparticles with large particle sizes provided noticeable thermal conductivity enhancements. Significantly, the graphene containing suspensions uniquely matched the thermal conductivity enhancements attained in nanotube suspensions without accompanying viscosity, thus making them an attractive new coolant for demanding applications such as electronics and reactor cooling.

Ozturk, Serdar 1979-

2012-12-01T23:59:59.000Z

408

Essays in Financial Econometric Investigations of Farmland Valuations  

E-Print Network (OSTI)

This dissertation consists of three essays wherein tools of financial econometrics are used to study the three aspects of farmland valuation puzzle: short-term boom-bust cycles, overpricing of farmland, and inconclusive effects of direct government payments. Essay I addresses the causes of unexplained short-term boom-bust cycles in farmland values in a dynamic land pricing model (DLPM). The analysis finds that gross return rate of farmland asset decreases as the farmland asset level increases, and that the diminishing return function of farmland asset contributes to the boom-bust cycles in farmland values. Furthermore, it is mathematically proved that land values are potentially unstable under diminishing return functions. We also find that intertemporal elasticity of substitution, risk aversion, and transaction costs are important determinants of farmland asset values. Essay II examines the apparent overpricing of farmland by decomposing the forecast error variance of farmland prices into forward looking and backward looking components. The analysis finds that in the short run, the forward looking Capital Asset Pricing Model (CAPM) portion of the forecast errors are significantly higher in a boom or bust stage than in a stable stage. This shows that the farmland market absorbs economic information in a discriminative manner according to the stability of the market, and the market (and actors therein) responds to new information gradually as suggested by the theory. This helps to explain the overpricing of farmland, but this explanation works primarily in the short run. Finally, essay III investigates the duel effects of direct government payments and climate change on farmland values. This study uses a smooth coefficient semi-parametric panel data model. The analysis finds that land valuation is affected by climate change and government payments, both through discounted revenues and through effects on the risk aversion of land owners. This essay shows that including heterogeneous risk aversion is an efficient way to mitigate the impacts of misspecifications in a DLPM, and that precipitation is a good explanatory variable. In particular, precipitation affects land values in a bimodal manner, indicating that farmland prices could have multiple peaks in precipitation due to adaption through crop selection and technology alternation.

Xu, Jin

2013-08-01T23:59:59.000Z

409

Investigation of Energy-Efficient Supermarket Display Cases  

SciTech Connect

Supermarkets represent one of the largest energy-intensive building groups in the commercial sector, consuming 2 to 3 million kWh/yr per store (ES-1). Over half of this energy use is for the refrigeration of food display cases and storage coolers. Display cases are used throughout a supermarket for the merchandising of perishable food products. The cases are maintained at air temperatures ranging from -10 to 35 F, depending upon the type of product stored. The operating characteristics and energy requirements of the refrigeration system are directly related to the refrigeration load. The sources of the display case refrigeration load consist of: (1) Moist and warm air infiltration through the open front of the case--air curtains are employed to inhibit this infiltration, but some ambient air is entrained, which adds a substantial portion to the refrigeration load. (2) Heat conduction through case panels and walls. (3) Thermal radiation from the ambient to the product and display case interior. (4) Internal thermal loads--the use of lights, evaporator fans, periodic defrosts, and antisweat heaters adds to the refrigeration load of the display case as well as directly consuming electric energy. The impact of each of these elements on the refrigeration load is very dependent upon case type (Figure ES-1). For example, air infiltration is the most significant portion of the refrigeration load for open, multi-deck cases, while radiation is the largest part of the load for tub-type cases. The door anti-sweat heaters represent a major share of the refrigeration load for frozen food door reach-in cases. Figure ES-2 shows the distribution of display cases in a typical supermarket (ES-2). Open, multi-deck, medium temperature display cases typically comprise about half of the refrigerated fixtures in a store (ES-3). In addition, medium temperature fixtures and storage coolers account for roughly 70 to 75 percent of the total store refrigeration load with open, multi-deck cases contributing about 3/4 of that fraction. Consequently, the focus of this investigation has tilted toward the open, vertical, multi-deck medium temperature case type. Various technologies and control methods are energy efficiency measures (EEMs) that could be applied to display cases and result in the reduction of the refrigeration load and of the energy consumption of the supermarket refrigeration system. An extensive evaluation of the EEMs was conducted in order to select those that met the following criteria: (1) Near-term implementation--All EEMs considered could be implemented with existing refrigeration hardware and technology. (2) Potential for energy-efficiency improvements--Energy savings and/or refrigeration load reduction must be obtained by the implementation of the EEM. (3) Enhancement of the ability to maintain target product temperature--Proper operation of the display case and maintenance of the stored product temperature could not be compromised by the use of the EEM. The energy impact of a number of viable display case EEMs was quantified by performing whole building hourly simulations. A special version of the U.S. Department of Energy's (DOE-2.3) program was used to develop a model of a supermarket. The model was then calibrated using available end-use monitored data to increase confidence in simulation results.

Walker, D.H.

2005-01-21T23:59:59.000Z

410

[Environmental investigation of ground water contamination at Wright- Patterson Air Force Base, Ohio]. Volume 4, Health and Safety Plan (HSP); Phase 1, Task 4 Field Investigation report: Draft  

SciTech Connect

This Health and Safety Plan (HSP) was developed for the Environmental Investigation of Ground-water Contamination Investigation at Wright-Patterson Air Force Base near Dayton, Ohio, based on the projected scope of work for the Phase 1, Task 4 Field Investigation. The HSP describes hazards that may be encountered during the investigation, assesses the hazards, and indicates what type of personal protective equipment is to be used for each task performed. The HSP also addresses the medical monitoring program, decontamination procedures, air monitoring, training, site control, accident prevention, and emergency response.

Not Available

1991-10-01T23:59:59.000Z

411

Late Quaternary Geochronology and Recent Faulting Along the Eastern Margin of the Shukash Basin, Central Cascade Range, Oregon.  

E-Print Network (OSTI)

??Part I: Seismic Stratigraphy Transecting the Eastern Margin of the Shukash Basin, Central Cascade Range, Oregon The Shukash Basin is a sediment filled-trough that lies (more)

Lyon, Edward W., Jr.

2001-01-01T23:59:59.000Z

412

Geochronology of recent sediments from the Cariaco Trench (Venezuela) by Alpha Spectrometry of {sup 210}Pb ({sup 210}Po)  

Science Conference Proceedings (OSTI)

210Pb concentration in marine sediments of the Cariaco Trench (North-East of Venezuela) was measured through the analysis of 210Po alpha emissions, which can be assumed to be in secular equilibrium with 210Pb. The analysed sediment core has a length of 1.9 m. The results allowed to apply the CF:CS dating model (Constant Flux and Constant Supply). The sedimentation rate was estimated to be 0.25 cm/y. As far as we know this is the first {alpha}- dating carried out in the country, performed with an alpha spectrometer recently funded by the IAEA.

Arriojas, A.; Barros, H.; Palacios, D.; Sajo-Bohus, L. [Laboratorio de Fisica Nuclear, Universidad Simon Bolivar, Caracas (Venezuela, Bolivarian Republic of); Hurtado, S.; Villa, M. [Centro de Investigacion, Tecnologia e Innovacion de la Universidad de Sevilla (Spain); Perez, K.; Alfonso, J. [Centro de Quimica, Instituto Venezolano de Investigaciones Cientificas (Venezuela, Bolivarian Republic of)

2010-08-04T23:59:59.000Z

413

Structure and geochronological constraints on the ductile deformation observed along the Gaoligong Shan and Chong Shan Shear Zones, Yunnan (China)  

E-Print Network (OSTI)

The mechanism by which the Cenozoic post-collisional northward motion of India relative to Eurasia and South China was accommodated along its eastern boundary is still a poorly understood aspect of the tectonic evolution ...

Akciz, Sinan Osman, 1974-

2004-01-01T23:59:59.000Z

414

Petrology, geochronology and provenance of the Laingsburg and Tanqua Karoo submarine fan systems, Ecca Group, South Africa.  

E-Print Network (OSTI)

??The integration of whole-rock chemistry, heavy mineral chemistry, detrital zircon morphology and age dating has enabled high-resolution characterization of the Permian Laingsburg and Tanqua submarine (more)

Nguema Mve, Oliver Patrice

2005-01-01T23:59:59.000Z

415

Report on the Scope of the Accident Investigation of the Tristan...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report on the Scope of the Accident Investigation of the Tristan Fire at the DOE Brookhaven National Laboratory, IG-0386 Report on the Scope of the Accident Investigation of the...

416

A Three-Dimensional Numerical Investigation of a Carolina Coastal Front and the Gulf Stream Rainband  

Science Conference Proceedings (OSTI)

A three-dimensional mesoscale planetary boundary layer (PBL) numerical model is used to investigate mesoscale circulations over the Carolina coastal and Gulf Stream baroclinic zones. Idealized ambient onshore and offshore flows are investigated, ...

Ching-Yuang Huang; Sethu Raman

1992-04-01T23:59:59.000Z

417

A Wind Tunnel Investigation of Interactions between Supercooled Precipitation-Size Water Drops  

Science Conference Proceedings (OSTI)

Laboratory experiments were performed to investigate interactions between small (400900 ?m) precipitation-size drops at temperatures colder than 0C. The investigation was accomplished by creating a light shower of supercooled drizzle drops in a ...

Robert R. Czys; Jeffrey K. Lew

1999-09-01T23:59:59.000Z

418

Recommendation 170: Remedial Investigation/Feasibility Study for East Tennessee Technology Park  

Energy.gov (U.S. Department of Energy (DOE))

The ORSSAB Recommendation to DOE on a Remedial Investigation/Feasibility Study for East Tennessee Technology Park.

419

Principal Investigators:  

E-Print Network (OSTI)

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency

Volume I; Stewart Clayton; T. L. Buchanan; M. R. Delallo; H. N. Goldstein; G. W. Grubbs; M. D. Rutkowski; H. Weisenfeld Energetics

1999-01-01T23:59:59.000Z

420

Investigative Genetics  

Science Conference Proceedings (OSTI)

... using BWA only requires 3.5 GB of RAM, and can ... improvements to forensic analyses. ... around STRs, which can increase power in kinship analysis. ...

2012-10-09T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Institution Investigator  

E-Print Network (OSTI)

Manufacturing Inc, HydroGen Corp, Keithley Instruments, McKinsey & Company, MetaMateria Partners LLC, NexEnergy Inc, Honda of America Manufacturing Inc, HydroGen Corporation, Keithley Instruments, McKinsey

422

Earthquakes Investigated  

E-Print Network (OSTI)

We appreciate that many of you have commented favorably on the first two issues of Scientific Drilling. Respondents have frequently expressed delight, and often surprise, at learning about the remarkable breadth and scope of scientific projects that employ drilling as a means of studying the Earth and its environments. This third issue of the journal is no exception, spanning topics from extraterrestrial impact events over gas hydrates to fluid flow in both shallow and deep crustal settings. In addition, we are pleased to introduce in this issue yet another international scientific drilling programANDRILL. This Antarctic drilling program will recover sediment cores from beneath the ice shelf, tracking the history of Antarctic ice-sheet variation and evolution back in time to well before the date of the oldest preserved ice in Antarctica. We editors are no less impressed than the readers by the diversity of scientific drilling and the technology applied, but also note that,

Core Complex; Sedimentation; At Focal Depths

2006-01-01T23:59:59.000Z

423

Investigating Water  

E-Print Network (OSTI)

This 3-ring binder contains teaching plans for 12 lessons on topics such as "Water in Our Daily Lives," "The Water Cycle," "Amazing Aquifers," "Water and Soil," "Aquatic Ecosystems," and "Water Wise Use." Accompanying each lesson plan are activity and record sheets for hands-on learning experiences. This curriculum is intended for students in about 4th to 8th grades.

Howard Jr., Ronald A.

2002-01-02T23:59:59.000Z

424

Institution Investigator  

E-Print Network (OSTI)

, Giorgio CAR Center of Excellence for Electric and Plug-in Hybrid Vehicle Technology Wright Projects Advanced and Alternative Energy 2009 $3,000,000 American Electric Power, Fil-Mor Express Center of Excellence for Energy Storage Technology Wright Projects Advanced and Alternative Energy 2010

425

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports Materials Discovery, Design, and Synthesis Team

426

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Scientific Highlights Reports & Activities Principal Investigators' Meetings BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports

427

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Scientific User Facilities (SUF) Division SUF Home About User Facilities Accelerator & Detector Research & Development Principal Investigators' Meetings Scientific Highlights Construction Projects BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports

428

Geothermal investigation in Idaho. Part 14. Geochemical and isotopic investigations of thermal water occurrences of the Boise Front Area, Ada County, Idaho  

DOE Green Energy (OSTI)

A limited chemical and isotopic investigation was undertaken and geological, geophysical, and hydrological data in the literature were reviewed to evaluate the geothermal potential of the Boise area. 68 refs., 12 figs., 4 tabs. (ACR)

Mayo, A.L.; Muller, A.B.; Mitchell, J.C.

1984-12-01T23:59:59.000Z

429

Source evaluation report phase 2 investigation: Limited field investigation. Final report: United States Air Force Environmental Restoration Program, Eielson Air Force Base, Alaska  

SciTech Connect

This report describes the limited field investigation work done to address issues and answer unresolved questions regarding a collection of potential contaminant sources at Eielson Air Force Base (AFB), near Fairbanks, Alaska. These sources were listed in the Eielson AFB Federal Facility Agreement supporting the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) cleanup of the base. The limited field investigation began in 1993 to resolve all remaining technical issues and provide the data and analysis required to evaluate the environmental hazard associated with these sites. The objective of the limited field investigation was to allow the remedial project managers to sort each site into one of three categories: requiring remedial investigation/feasibility study, requiring interim removal action, or requiring no further remedial action.

Not Available

1994-10-01T23:59:59.000Z

430

DOE Order Self Study Modules - DOE O 225.1B, Accident Investigation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

225.1B 225.1B ACCIDENT INVESTIGATIONS DOE O 225.1B Accident Investigations Familiar Level June 2011 1 June 2011 DOE ORDER O 225.1B ACCIDENT INVESTIGATIONS FAMILIAR LEVEL OBJECTIVES Given the familiar level of this module and the resources listed below, you will be able to: 1. State the purpose of implementing U.S. Department of Energy (DOE) O 225.1B. 2. Discuss the responsibilities of the heads of field elements for accident investigations. 3. Discuss the responsibilities of the appointing official in an accident investigation. 4. Discuss the responsibilities of the Accident Investigation Board Chairperson. 5. Discuss the criteria identified in appendix A of DOE O 225.1B. Note: If you think that you can complete the practice at the end of this level without

431

Order Module--DOE Order 225.1B, ACCIDENT INVESTIGATIONS | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Order 225.1B, ACCIDENT INVESTIGATIONS Order 225.1B, ACCIDENT INVESTIGATIONS Order Module--DOE Order 225.1B, ACCIDENT INVESTIGATIONS DOE O 225.1B prescribes organizational responsibilities, authorities, and requirements for conducting investigations of certain accidents occurring at DOE sites, facilities, areas, operations, and activities. The purpose of the accident investigation is to understand and identify the causes that contributed to the accident so those deficiencies can be addressed and corrected. This, in turn, is intended to prevent recurrence and promote improved environmental protection and safety and health of DOE employees, contractors, and the public. Moreover, accident investigations are used to promote the values and concepts of a learning organization. The department's integrated safety management (ISM) feedback and improvement

432

078 HRTEM Investigations in BiFeO3-PbTiO3 Multifunctional ...  

Science Conference Proceedings (OSTI)

... and ferroelectric investigations were conducted in a Sawyer-Tower circuit. .... 142 Optimization of Secondary Cooling Parameters in Continuous Casting Using

433

GIS as an investigative tool| Groundwater contamination and private wells in Guilford County, North Carolina.  

E-Print Network (OSTI)

?? The purpose of this research is twofold: (1) to demonstrate the effectiveness of GIS and spatial analysis as a tool for investigating groundwater contamination; (more)

Wolfe, Kathleen M.

2008-01-01T23:59:59.000Z

434

Investigation on Oxidation Resistance of NiCoCrAlY Coating ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation on Oxidation Resistance of NiCoCrAlY Coating Irradiated by High Current Pulsed Electron Beam. Author(s), Xianxiu Mei, Cunxia ...

435

Investigation of Structural Stability of Monolayer MnO 2 Sheet under ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of Structural Stability of Monolayer MnO2 Sheet under Electron Beam Irradiation. Author(s), Yong Wang, Chenghua Sun, Jin Zou ...

436

Design Analysis and Experimental Investigation of the HVAC System in an IC Circuit Plant.  

E-Print Network (OSTI)

??It is the goal of this project to investigate the energy conservation measures which can be adapted in an electronic manufacturing plant HVAC system. Computer (more)

Chang, I-wei

2005-01-01T23:59:59.000Z

437

Final report : results of the 2005 investigation of contaminant sources at Agra, Kansas.  

Science Conference Proceedings (OSTI)

The 2005 investigation of contaminant sources at Agra, Kansas, was conducted at the request of the Kansas Department of Health and Environment (KDHE; Gotto 2004). The Environmental Science Division of Argonne National Laboratory implemented the investigation on behalf of the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA). The investigation was designed to (1) update the conceptual site model and (2) investigate sources of previously identified carbon tetrachloride contamination in groundwater. Six technical objectives were proposed in the ''Work Plan'' (Argonne 2005). The ''Work Plan'' was approved by the KDHE on March 28, 2005 (KDHE 2005). The six objectives were as follows: (1) Determine the current configuration of the carbon tetrachloride plume in the investigation area. (2) Delineate contamination detected in 1998-1999 at the former CCC/USDA facility. (3) Investigate the Pro-Ag Co-op property for evidence of releases of carbon tetrachloride. (4) Investigate the area adjacent to the site of the former retail store for evidence of releases of carbon tetrachloride to the subsurface. (5) Collect data to support the analysis of potential remedial alternatives. (6) Update the inventory of private wells to identify potential downgradient receptors. This report details and interprets the data collected during the 2005 investigation at Agra. The investigation met the objectives defined in the ''Work Plan''.

LaFreniere, L. M.

2006-08-24T23:59:59.000Z

438

OPS 9.6 Investigation of Abnormal Events 8/24/98  

Energy.gov (U.S. Department of Energy (DOE))

The objective of this surveillance is to verify that contractor personnel are effectively investigating abnormal events. The activities included in this surveillance provide a basis for...

439

Towards an Automated Digital Data Forensic Model with specific reference to Investigation Processes  

E-Print Network (OSTI)

Existing digital forensics frameworks do not provide clear guidelines for conducting digital forensics investigation. However, had a framework existed, investigations based on known procedures and processes would follow strict prescribed standardisation. This should direct investigations following a set method for comparisons; ensuring future investigation is following one standard. Digital forensics lack confirmed and tested methods; this became obvious when we consider varied interpretations of the same case by participants using different investigation methods. Previous research covered several approaches to setting a forensics framework, which are mere adaptations of previous models. We found that only a few models present a framework that defines or delivers qualified likeness between the different disciplines. From this, possible pattern analysis from different disciplines is possible (Kohn, 2007). This underlines the need to standardise processes, to ensure proven and consistent results. Digital Forensics Science needs a new approach, defining and standardising investigation processes by affirming an investigation framework. Present research does not enough cover how existing forensic frameworks are used as guideline while conduct investigations. As a result, wide general interpretations are possible instead of following a set standard. Investigation processes and in particular how data confirmation is conducted during and after

Australian Digital; Forensics Conference; Johan Scholtz; Ajit Narayanan; Johan Scholtz; Professor Ajit Narayanan

2010-01-01T23:59:59.000Z

440

Investigation of non-targeted effects of low dose ionizing radiation...  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigation of non-targeted effects of low dose ionizing radiation on the mammary gland utilizing three-dimensional culture models of mammary cells derived from mouse strains...

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Investigation of impact of fuel injection strategy and biodiesel fueling on engine emissions and performance.  

E-Print Network (OSTI)

??Both biodiesel fueling and changes of fuel injection pressure have significant impacts on diesel engine emissions. The investigations of their impacts on engine exhaust NOx (more)

Ye, Peng

2011-01-01T23:59:59.000Z

442

Experimental and theoretical investigation of transport phenomena in nanoparticle colloids (nanofluids)  

E-Print Network (OSTI)

This study investigates the thermal transport behavior of nanoparticle colloids or nanofluids. The major efforts are: to determine methods to characterize a nanoparticle colloid's mass loading, chemical constituents, ...

Williams, Wesley Charles, 1976-

2007-01-01T23:59:59.000Z

443

Thermochemical production of hydrogen from water. [Brief discussion of some cycles being investigated  

SciTech Connect

After a brief discussion of thermochemical efficiency and step-wise decomposition of water, some of the more promising thermochemical hydrogen cycles under investigation are described. (LK)

Cox, K.E.; Bowman, M.G.

1977-01-01T23:59:59.000Z

444

Investigations of grid-connected wind power system : low voltage ride through and power quality issues.  

E-Print Network (OSTI)

??This thesis presents an investigation on system architecture, control and analysis of wind turbine generators to improve grid integration performance. First of all, the main (more)

Zhang, Shao.

2011-01-01T23:59:59.000Z

445

Investigation of greenhouse gas reduction strategies by industries : an enterprise systems architecting approach  

E-Print Network (OSTI)

This thesis explores an enterprise systems architecting approach to investigate the greenhouse gas reduction strategies followed by industries, especially for automotive industry and Information Technology industry. The ...

Tanthullu Athmaram, Kumaresh Babu

2012-01-01T23:59:59.000Z

446

Order Module--DOE Order 225.1B, ACCIDENT INVESTIGATIONS  

Energy.gov (U.S. Department of Energy (DOE))

DOE O 225.1B prescribes organizational responsibilities, authorities, and requirements for conducting investigations of certain accidents occurring at DOE sites, facilities, areas, operations, and...

447

Beef of Burden? : An investigation of attitudes towards beef consumption among Norwegian consumers.  

E-Print Network (OSTI)

??This thesis set out to investigate Norwegians attitudes towards beef consumption. UNEP calls for a worldwide dietary change, away from animal products. Still, the Norwegian (more)

Bellika, Siri Karlsen

2013-01-01T23:59:59.000Z

448

NIST to Hold Public Meeting on WTC Investigation in NYC on ...  

Science Conference Proceedings (OSTI)

NIST to Hold Public Meeting on WTC Investigation in NYC on February 12. ... specific technical aspects of the individual projects as reported in our ...

2011-10-11T23:59:59.000Z

449

Investigations On Flow And Flow-Induced Vibration Of Candu Fuel Bundles.  

E-Print Network (OSTI)

??Excitations induced by three-dimensional unsteady flows of ordinary water coolant through a string of CANDU fuel bundles in a fuel channel are investigated in this (more)

Bhattacharya, Alokendu

2013-01-01T23:59:59.000Z

450

Numerical and experimental investigations on vibration of simulated CANDU fuel bundles subjected to turbulent fluid flow.  

E-Print Network (OSTI)

??Vibration of simulated CANDU fuel bundles induced by coolant flow is investigated in this thesis through experiments and numerical simulations. Two simulated bundles and a (more)

Zhang, Xuan

2011-01-01T23:59:59.000Z

451

(Environmental investigation of ground water contamination at Wright- Patterson Air Force Base, Ohio)  

SciTech Connect

This Health and Safety Plan (HSP) was developed for the Environmental Investigation of Ground-water Contamination Investigation at Wright-Patterson Air Force Base near Dayton, Ohio, based on the projected scope of work for the Phase 1, Task 4 Field Investigation. The HSP describes hazards that may be encountered during the investigation, assesses the hazards, and indicates what type of personal protective equipment is to be used for each task performed. The HSP also addresses the medical monitoring program, decontamination procedures, air monitoring, training, site control, accident prevention, and emergency response.

Not Available

1991-10-01T23:59:59.000Z

452

An empirical investigation into the inventory impact on financial performance of Chinese companies.  

E-Print Network (OSTI)

??ix, 40 p. : ill. ; 30 cm HKUST Call Number: Thesis IELM 2011 Liu This paper presents an empirical study to investigate how inventory (more)

Liu, Jia

2011-01-01T23:59:59.000Z

453

Investigation of Peak Load Reduction Strategies in Residential Buildings in Cooling Dominated Climates.  

E-Print Network (OSTI)

??This investigation of peak load reduction strategies in residential buildings contributes to the global international efforts in reducing energy consumption and is related directly to (more)

Atallah, Fady

2013-01-01T23:59:59.000Z

454

A test machine for investigation of the strength of thin sheet materials ...  

Science Conference Proceedings (OSTI)

PRODUCTION SECTION. A TEST MACHINE FOR INVESTIGATION OF THE STRENGTH OF THIN. SHEET ~IATERIALS IN BIAXIAL TENSION IN THE 20-300 ~.

455

Preliminary Investigations of the Effect of Particle Size and Tip Size ...  

Science Conference Proceedings (OSTI)

Presentation Title, Preliminary Investigations of the Effect of Particle Size and Tip Size in the Current Activated Tip-Based Sintering (CATS) of Nickel Powder...

456

AN INVESTIGATION OF THE COGNITIVE AND PERCEPTUAL MECHANISMS INVOLVED IN MANIA-PRONENESS.  

E-Print Network (OSTI)

??The present research investigates the cognitive and perceptual mechanisms involved in mania-proneness. Building on the work of Depue and colleagues (Depue & Iacono, 1989; Depue (more)

Mercer, Kimberly

2010-01-01T23:59:59.000Z

457

Investigation on Corrosion Behaviour of Ni-Based Alloys in Molten ...  

Science Conference Proceedings (OSTI)

In this paper, corrosion processes of Ni-based superalloys including Inconel 600, Hastelloy X and Hastelloy C-276 were investigated in molten fluoride salts...

458

Investigation of greenhouse gas reduction strategies by industries : an enterprise systems architecting approach.  

E-Print Network (OSTI)

??This thesis explores an enterprise systems architecting approach to investigate the greenhouse gas reduction strategies followed by industries, especially for automotive industry and Information Technology (more)

Tanthullu Athmaram, Kumaresh Babu

2012-01-01T23:59:59.000Z

459

Rules and Regulations for the Investigation and Remediation of Hazardous Material Releases (Rhode Island)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations establish procedures for the investigation and remediation of contamination resulting from the unpermitted release of hazardous materials. The regulations aim to protect water...

460

Investigation of several critical issues in screen mesh heat pipe manufacturing and operation.  

E-Print Network (OSTI)

??The PhD thesis with the title Investigation of several critical issues in screen mesh heat pipe manufacturing and operation presented hereafter describes work carried out (more)

Engelhardt, Andreas

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb-sr geochronologic investigation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Investigation of component failures in downhole geothermal pumping systems. Final report  

DOE Green Energy (OSTI)

This study investigated component failures in electric, downhole submersible pumps which prevented the attainment of one year continuous downhole running times in geothermal wells at temperatures up to 375/sup 0/F. The feasibility of a pressurized motor to prevent brine intrusion was investigated, as well as improved pothead and packoff designs, and brine scale buildup on impeller sleeve bearings and thrust washers. (ACR)

Werner, D.K.

1985-03-15T23:59:59.000Z

462

Wind noise suppression in cochlear implants with one and two microphones Student Investigator: Casey Cox  

E-Print Network (OSTI)

1 Wind noise suppression in cochlear implants with one and two microphones Student Investigator coding strategy used. However, performance deteriorates significantly in wind noise. Wind noise was to investigate how wind noise affects speech intelligibility in cochlear implant users. Default noise reduction

Peterson, Blake R.

463

An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains  

E-Print Network (OSTI)

1 An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex, 50011 An experimental study was conducted to investigate the interferences of wind turbines sited over conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case

Hu, Hui

464

Call for White Papers: Soliciting Community Input for Alternate Science Investigations for the Kepler Spacecraft  

E-Print Network (OSTI)

Call for White Papers: Soliciting Community Input for Alternate Science Investigations of this call for white papers is to solicit community input for alternate science investigations that may project office personnel and expertise already in place. All white papers submitted in response

Rodriguez, Carlos

465

Investigation of the North Brazil Current retroflection and North Equatorial Countercurrent variability  

E-Print Network (OSTI)

Investigation of the North Brazil Current retroflection and North Equatorial Countercurrent to investigate the temporal and spatial variability of the North Brazil Current (NBC) retroflection and the North Brazil Current retroflection and North Equatorial Countercurrent variability, Geophys. Res. Lett., 31, L

466

NMR Spectroscopic Investigations of Chemical Forms of Phosphorus in Alum Amended  

E-Print Network (OSTI)

NMR Spectroscopic Investigations of Chemical Forms of Phosphorus in Alum Amended Poultry Litter. (S) seems to be the most promising. In this work, results from a solid-state 31-P NMR investigation: (302) 831-0605 e-mail: hunger@udel.edu #12;Keywords: Phosphorus, 31-P NMR spectroscopy, animal wastes

Sparks, Donald L.

467

PhD Project: NMR Advanced Methodologies to investigate water diffusion in colloids and  

E-Print Network (OSTI)

PhD Project: NMR Advanced Methodologies to investigate water diffusion in colloids and biological lengthscales. Nuclear Magnetic Resonance (NMR) is capable of investigating the diffusion of molecules in fluids and the information obtainable with the conventional DTI. Another NMR branch where diffusion issues can be improved

Roma "La Sapienza", Università di

468

WAG 2 remedial investigation and site investigation site-specific work plan/health and safety checklist for the soil and sediment task. Environmental Restoration Program  

SciTech Connect

This document is a site-specific work plan/health and safety checklist (WP/HSC) for a task of the Waste Area Grouping 2 Remedial Investigation and Site Investigation (WAG 2 RI&SI). Title 29 CFR Part 1910.120 requires that a health and safety program plan that includes site- and task-specific information be completed to ensure conformance with health- and safety-related requirements. To meet this requirement, the health and safety program plan for each WAG 2 RI&SI field task must include (1) the general health and safety program plan for all WAG 2 RI&SI field activities and (2) a WP/HSC for that particular field task. These two components, along with all applicable referenced procedures, must be kept together at the work site and distributed to field personnel as required. The general health and safety program plan is the Health and Safety Plan for the Remedial Investigation and Site Investigation of Waste Area Grouping 2 at the Oak Ridge National Laboratory, Oak Ridge, Tennessee (ORNL/ER-169). The WP/HSCs are being issued as supplements to ORNL/ER-169.

Holt, V.L.; Burgoa, B.B.

1993-12-01T23:59:59.000Z

469

WAG 2 remedial investigation and site investigation site-specific work plan/health and safety checklist for the sediment transport modeling task  

SciTech Connect

This site-specific Work Plan/Health and Safety Checklist (WP/HSC) is a supplement to the general health and safety plan (HASP) for Waste Area Grouping (WAG) 2 remedial investigation and site investigation (WAG 2 RI&SI) activities [Health and Safety Plan for the Remedial Investigation and Site Investigation of Waste Area Grouping 2 at the Oak Ridge National Laboratory, Oak Ridge, Tennessee (ORNL/ER-169)] and provides specific details and requirements for the WAG 2 RI&SI Sediment Transport Modeling Task. This WP/HSC identifies specific site operations, site hazards, and any recommendations by Oak Ridge National Laboratory (ORNL) health and safety organizations [i.e., Industrial Hygiene (IH), Health Physics (HP), and/or Industrial Safety] that would contribute to the safe completion of the WAG 2 RI&SI. Together, the general HASP for the WAG 2 RI&SI (ORNL/ER-169) and the completed site-specific WP/HSC meet the health and safety planning requirements specified by 29 CFR 1910.120 and the ORNL Hazardous Waste Operations and Emergency Response (HAZWOPER) Program Manual. In addition to the health and safety information provided in the general HASP for the WAG 2 RI&SI, details concerning the site-specific task are elaborated in this site-specific WP/HSC, and both documents, as well as all pertinent procedures referenced therein, will be reviewed by all field personnel prior to beginning operations.

Holt, V.L.; Baron, L.A.

1994-05-01T23:59:59.000Z

470

Investigation Memorandum: OIG Case No. I07AL011 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investigation Memorandum: OIG Case No. I07AL011 Investigation Memorandum: OIG Case No. I07AL011 Investigation Memorandum: OIG Case No. I07AL011 July 12, 2007 Investigation of Alleged False Certifications Relating to Testing of the Contingency Protective Force at the Pantex Plant, OIG Case No. I07AL011 In a letter dated April 27, 2007, the United States Office of Special Counsel informed the Department of Energy of allegations regarding potential security weaknesses at the National Nuclear Security Administration's (NNSA) Pantex Plant. Specifically, it was alleged that Department of Energy and NNSA officials failed to provide properly trained and experience contingency security forces to guard the Pantex Plant during a strike by security personnel of BWX Technologies, Inc. (BWXT). Investigation Memorandum: OIG Case No. I07AL011

471

Major results of geophysical investigations at Yucca Mountain and vicinity, southern Nevada  

SciTech Connect

In the consideration of Yucca Mountain as a possible site for storing high level nuclear waste, a number of geologic concerns have been suggested for study by the National Academy of Sciences which include: (1) natural geologic and geochemical barriers, (2) possible future fluctuations in the water table that might flood a mined underground repository, (3) tectonic stability, and (4) considerations of shaking such as might be caused by nearby earthquakes or possible volcanic eruptions. This volume represents the third part of an overall plan of geophysical investigation of Yucca Mountain, preceded by the Site Characterization Plan (SCP; dated 1988) and the report referred to as the Geophysical White Paper, Phase 1, entitled Status of Data, Major Results, and Plans for Geophysical Activities, Yucca Mountain Project (Oliver and others, 1990). The SCP necessarily contained uncertainty about applicability and accuracy of methods then untried in the Yucca Mountain volcano-tectonic setting, and the White Paper, Phase 1, focused on summarization of survey coverage, data quality, and applicability of results. For the most part, it did not present data or interpretation. The important distinction of the current volume lies in presentation of data, results, and interpretations of selected geophysical methods used in characterization activities at Yucca Mountain. Chapters are included on the following: gravity investigations; magnetic investigations; regional magnetotelluric investigations; seismic refraction investigations; seismic reflection investigations; teleseismic investigations; regional thermal setting; stress measurements; and integration of methods and conclusions. 8 refs., 60 figs., 2 tabs.

Oliver, H.W.; Ponce, D.A. [eds.] [Geological Survey, Menlo Park, CA (United States); Hunter, W.C. [ed.] [Geological Survey, Denver, CO (United States). Yucca Mountain Project Branch

1995-12-31T23:59:59.000Z

472

Underwriters Laboratories now accepting certification investigation requests for E85 fuel dispensing equipment  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

MEDIA CONTACT: Joe Hirschmugl Global Media Relations Supervisor Underwriters Laboratories Phone: +1 847 830-1404 E-mail: Joseph.F.Hirschmugl@us.ul.com PRESS RELEASE FOR IMMEDIATE RELEASE Underwriters Laboratories Announces Development of Certification Requirements for E85 Dispensers Now Accepting Product Submittals for Certification Investigation NORTHBROOK, Ill. Oct. 16, 2007 - Underwriters Laboratories (UL), North America's leading safety testing and certification organization, announced the establishment of safety requirements for E85 fuel dispensing equipment, and is now accepting submittals for certification investigations. The establishment of safety requirements follows the completion of UL's comprehensive research program to investigate potential safety concerns associated with dispensing

473

Geothermal investigations at selected thermal systems of the northern Wasatch Front Weber and Box Elder Counties, Utah. Report of investigation No. 141  

DOE Green Energy (OSTI)

Numerous thermal springs are present along the Wasatch Front from Utah valley on the south to the state line on the north. These systems are just west of the Wasatch Mountains at the eastern edge of the Basin and Range physiographic province and within the active seismic zone referred to as the Intermountain Seismic Belt. This Report of Investigation is a summary of UGMS investigations at four northern Wasatch Front geothermal systems: Utah, Crystal (Madsen), and Udy hot springs; and the Little Mountain - south system. All of these resources are deep circulation systems and the water is heated by the normal heat flow of the Basin and Range Province. Heat from volcanic sources is not believed to contribute to the warming of any northern Wasatch Front springs. Data collected under the DOE/DGE state coupled program are presented for use by individuals interested in these systems.

Murphy, P.; Gwynn, J.W.

1979-11-01T23:59:59.000Z

474

WAG 2 remedial investigation and site investigation site-specific work plan/health and safety checklist for the ecological assessment task, Kingfisher Study  

SciTech Connect

This report provides specific details and requirements for the WAG 2 remedial investigation and site investigation Ecological Assessment Task, Kingfisher Study, including information that will contribute to safe completion of the project. The report includes historical background; a site map; project organization; task descriptions and hazard evaluations; controls; and monitoring, personal protective equipment, decontamination, and medical surveillance program requirements. The report also includes descriptions of site personnel and their certifications as well as suspected WAG 2 contaminants and their characteristics. The primary objective of the WAG 2 Kingfisher Study is to assess the feasibility of using kingfishers as biological monitors of contaminants on the Oak Ridge Reservation (ORR). Kingfisher sample collection will be used to determine the levels of contaminants and degree of bioaccumulation within a common piscivorous bird feeding on contaminated fish from streams on the ORR.

Holt, V.L.; Baron, L.A.

1994-05-01T23:59:59.000Z

475

Installation Restoration Program. Remedial investigation report. Site 1. Fire Training Area. Volk Field Air National Guard Base, Camp Douglas, Wi. Volume 1. Final remedial investigation report  

SciTech Connect

Volume 1 of this report covers the Remedial Investigation conducted on Site 1, Fire Training Area at Volk Field Air National Guard Base. The remedial work is described and the testing conducted after remediation to insure all contamination has been removed. The study as conducted under the Air National Guard's Installation Restoration Program. Partial contents include: Meteorology; Hydrology; Soils; Water wells; Groundwater; Borings; Samplings; Chemical contamination; Migration; Decontamination.

Not